diff --git a/crates/papyrus_execution/src/execution_test.rs b/crates/papyrus_execution/src/execution_test.rs
index 78aea699e4..9dde083e0c 100644
--- a/crates/papyrus_execution/src/execution_test.rs
+++ b/crates/papyrus_execution/src/execution_test.rs
@@ -850,9 +850,9 @@ fn blockifier_error_mapping() {
 // Test that we retrieve the correct versioned constants.
 #[test]
 fn test_get_versioned_constants() {
-    let starknet_version_13_0 = StarknetVersion("0.13.0".to_string());
-    let starknet_version_13_1 = StarknetVersion("0.13.1".to_string());
-    let starknet_version_13_2 = StarknetVersion("0.13.2".to_string());
+    let starknet_version_13_0 = StarknetVersion::try_from("0.13.0".to_string()).unwrap();
+    let starknet_version_13_1 = StarknetVersion::try_from("0.13.1".to_string()).unwrap();
+    let starknet_version_13_2 = StarknetVersion::try_from("0.13.2".to_string()).unwrap();
     let versioned_constants = get_versioned_constants(Some(&starknet_version_13_0)).unwrap();
     assert_eq!(versioned_constants.invoke_tx_max_n_steps, 3_000_000);
     let versioned_constants = get_versioned_constants(Some(&starknet_version_13_1)).unwrap();
diff --git a/crates/papyrus_protobuf/src/converters/header.rs b/crates/papyrus_protobuf/src/converters/header.rs
index d5175c7df1..279064e185 100644
--- a/crates/papyrus_protobuf/src/converters/header.rs
+++ b/crates/papyrus_protobuf/src/converters/header.rs
@@ -136,7 +136,15 @@ impl TryFrom<protobuf::SignedBlockHeader> for SignedBlockHeader {
 
         let l1_da_mode = enum_int_to_l1_data_availability_mode(value.l1_data_availability_mode)?;
 
-        let starknet_version = StarknetVersion(value.protocol_version);
+        let starknet_version = match StarknetVersion::try_from(value.protocol_version.to_owned()) {
+            Ok(version) => version,
+            Err(_) => {
+                return Err(ProtobufConversionError::OutOfRangeValue {
+                    type_description: "starknet version",
+                    value_as_str: value.protocol_version,
+                });
+            }
+        };
 
         let l1_gas_price = GasPricePerToken {
             price_in_fri: GasPrice(
@@ -259,7 +267,7 @@ impl From<(BlockHeader, Vec<BlockSignature>)> for protobuf::SignedBlockHeader {
             receipts: header
                 .receipt_commitment
                 .map(|receipt_commitment| receipt_commitment.0.into()),
-            protocol_version: header.starknet_version.0,
+            protocol_version: header.starknet_version.to_string(),
             gas_price_wei: Some(header.l1_gas_price.price_in_wei.0.into()),
             gas_price_fri: Some(header.l1_gas_price.price_in_fri.0.into()),
             data_gas_price_wei: Some(header.l1_data_gas_price.price_in_wei.0.into()),
diff --git a/crates/papyrus_rpc/src/v0_6/api/api_impl.rs b/crates/papyrus_rpc/src/v0_6/api/api_impl.rs
index 8a91b6aad8..655e21b365 100644
--- a/crates/papyrus_rpc/src/v0_6/api/api_impl.rs
+++ b/crates/papyrus_rpc/src/v0_6/api/api_impl.rs
@@ -1472,7 +1472,7 @@ async fn read_pending_data<Mode: TransactionKind>(
                 strk_l1_gas_price: latest_header.l1_gas_price.price_in_fri,
                 timestamp: latest_header.timestamp,
                 sequencer_address: latest_header.sequencer,
-                starknet_version: latest_header.starknet_version.0,
+                starknet_version: latest_header.starknet_version.to_string(),
                 ..Default::default()
             }),
             state_update: ClientPendingStateUpdate {
diff --git a/crates/papyrus_rpc/src/v0_6/api/test.rs b/crates/papyrus_rpc/src/v0_6/api/test.rs
index 94f4ae69e0..cc5fc10697 100644
--- a/crates/papyrus_rpc/src/v0_6/api/test.rs
+++ b/crates/papyrus_rpc/src/v0_6/api/test.rs
@@ -477,7 +477,7 @@ async fn get_block_w_full_transactions() {
     let block_hash = BlockHash(random::<u64>().into());
     let sequencer_address = SequencerContractAddress(random::<u64>().into());
     let timestamp = BlockTimestamp(random::<u64>());
-    let starknet_version = StarknetVersion("test".to_owned());
+    let starknet_version = StarknetVersion(vec![123]);
     block.header.block_hash = block_hash;
     block.header.sequencer = sequencer_address;
     block.header.timestamp = timestamp;
@@ -595,7 +595,7 @@ async fn get_block_w_full_transactions() {
                 price_in_wei: pending_l1_gas_price.price_in_wei,
                 price_in_fri: pending_l1_gas_price.price_in_fri,
             },
-            starknet_version: starknet_version.0.clone(),
+            starknet_version: starknet_version.to_string(),
         }),
         status: None,
         transactions: Transactions::Full(rpc_transactions),
@@ -608,7 +608,7 @@ async fn get_block_w_full_transactions() {
         *pending_block.timestamp_mutable() = pending_timestamp;
         *pending_block.sequencer_address_mutable() = pending_sequencer_address;
         pending_block.set_l1_gas_price(&pending_l1_gas_price);
-        *pending_block.starknet_version_mutable() = starknet_version.0;
+        *pending_block.starknet_version_mutable() = starknet_version.to_string();
     }
     // Using call_api_then_assert_and_validate_schema_for_result in order to validate the schema for
     // pending block.
@@ -651,7 +651,7 @@ async fn get_block_w_transaction_hashes() {
     let block_hash = BlockHash(random::<u64>().into());
     let sequencer_address = SequencerContractAddress(random::<u64>().into());
     let timestamp = BlockTimestamp(random::<u64>());
-    let starknet_version = StarknetVersion("test".to_owned());
+    let starknet_version = StarknetVersion(vec![123]);
     block.header.block_hash = block_hash;
     block.header.sequencer = sequencer_address;
     block.header.timestamp = timestamp;
@@ -765,7 +765,7 @@ async fn get_block_w_transaction_hashes() {
                 price_in_wei: pending_l1_gas_price.price_in_wei,
                 price_in_fri: pending_l1_gas_price.price_in_fri,
             },
-            starknet_version: starknet_version.0.clone(),
+            starknet_version: starknet_version.to_string(),
         }),
         status: None,
         transactions: Transactions::Hashes(
@@ -783,7 +783,7 @@ async fn get_block_w_transaction_hashes() {
         *pending_block.timestamp_mutable() = pending_timestamp;
         *pending_block.sequencer_address_mutable() = pending_sequencer_address;
         pending_block.set_l1_gas_price(&pending_l1_gas_price);
-        *pending_block.starknet_version_mutable() = starknet_version.0;
+        *pending_block.starknet_version_mutable() = starknet_version.to_string();
     }
     // Using call_api_then_assert_and_validate_schema_for_result in order to validate the schema for
     // pending block.
diff --git a/crates/papyrus_rpc/src/v0_6/block.rs b/crates/papyrus_rpc/src/v0_6/block.rs
index da3c35a662..24bccdb61a 100644
--- a/crates/papyrus_rpc/src/v0_6/block.rs
+++ b/crates/papyrus_rpc/src/v0_6/block.rs
@@ -53,7 +53,7 @@ impl From<starknet_api::block::BlockHeader> for BlockHeader {
                 price_in_wei: header.l1_gas_price.price_in_wei,
                 price_in_fri: header.l1_gas_price.price_in_fri,
             },
-            starknet_version: header.starknet_version.0,
+            starknet_version: header.starknet_version.to_string(),
         }
     }
 }
diff --git a/crates/papyrus_rpc/src/v0_7/api/api_impl.rs b/crates/papyrus_rpc/src/v0_7/api/api_impl.rs
index fc503f168c..c88f7186c9 100644
--- a/crates/papyrus_rpc/src/v0_7/api/api_impl.rs
+++ b/crates/papyrus_rpc/src/v0_7/api/api_impl.rs
@@ -1492,7 +1492,7 @@ async fn read_pending_data<Mode: TransactionKind>(
                 strk_l1_gas_price: latest_header.l1_gas_price.price_in_fri,
                 timestamp: latest_header.timestamp,
                 sequencer_address: latest_header.sequencer,
-                starknet_version: latest_header.starknet_version.0,
+                starknet_version: latest_header.starknet_version.to_string(),
                 ..Default::default()
             }),
             state_update: ClientPendingStateUpdate {
diff --git a/crates/papyrus_rpc/src/v0_7/api/test.rs b/crates/papyrus_rpc/src/v0_7/api/test.rs
index 4da2add3a4..96523e23a9 100644
--- a/crates/papyrus_rpc/src/v0_7/api/test.rs
+++ b/crates/papyrus_rpc/src/v0_7/api/test.rs
@@ -485,7 +485,7 @@ async fn get_block_w_full_transactions() {
     let block_hash = BlockHash(random::<u64>().into());
     let sequencer_address = SequencerContractAddress(random::<u64>().into());
     let timestamp = BlockTimestamp(random::<u64>());
-    let starknet_version = StarknetVersion("test".to_owned());
+    let starknet_version = StarknetVersion(vec![123]);
     block.header.block_hash = block_hash;
     block.header.sequencer = sequencer_address;
     block.header.timestamp = timestamp;
@@ -605,7 +605,7 @@ async fn get_block_w_full_transactions() {
             },
             l1_data_gas_price: ResourcePrice::default(),
             l1_da_mode: L1DataAvailabilityMode::Calldata,
-            starknet_version: starknet_version.0.clone(),
+            starknet_version: starknet_version.to_string(),
         }),
         status: None,
         transactions: Transactions::Full(rpc_transactions),
@@ -618,7 +618,7 @@ async fn get_block_w_full_transactions() {
         *pending_block.timestamp_mutable() = pending_timestamp;
         *pending_block.sequencer_address_mutable() = pending_sequencer_address;
         pending_block.set_l1_gas_price(&pending_l1_gas_price);
-        *pending_block.starknet_version_mutable() = starknet_version.0;
+        *pending_block.starknet_version_mutable() = starknet_version.to_string();
     }
     // Using call_api_then_assert_and_validate_schema_for_result in order to validate the schema for
     // pending block.
@@ -662,7 +662,7 @@ async fn get_block_w_full_transactions_and_receipts() {
     let block_hash = BlockHash(random::<u64>().into());
     let sequencer_address = SequencerContractAddress(random::<u64>().into());
     let timestamp = BlockTimestamp(random::<u64>());
-    let starknet_version = StarknetVersion("test".to_owned());
+    let starknet_version = StarknetVersion(vec![123]);
     let block_number = block.header.block_number;
     block.header.block_hash = block_hash;
     block.header.sequencer = sequencer_address;
@@ -788,7 +788,7 @@ async fn get_block_w_full_transactions_and_receipts() {
             },
             l1_data_gas_price: ResourcePrice::default(),
             l1_da_mode: L1DataAvailabilityMode::Calldata,
-            starknet_version: starknet_version.0.clone(),
+            starknet_version: starknet_version.to_string(),
         }),
         status: None,
         transactions: Transactions::FullWithReceipts(
@@ -811,7 +811,7 @@ async fn get_block_w_full_transactions_and_receipts() {
         *pending_block.timestamp_mutable() = pending_timestamp;
         *pending_block.sequencer_address_mutable() = pending_sequencer_address;
         pending_block.set_l1_gas_price(&pending_l1_gas_price);
-        *pending_block.starknet_version_mutable() = starknet_version.0;
+        *pending_block.starknet_version_mutable() = starknet_version.to_string();
     }
     // Using call_api_then_assert_and_validate_schema_for_result again in order to validate the
     // schema for pending block too.
@@ -855,7 +855,7 @@ async fn get_block_w_transaction_hashes() {
     let block_hash = BlockHash(random::<u64>().into());
     let sequencer_address = SequencerContractAddress(random::<u64>().into());
     let timestamp = BlockTimestamp(random::<u64>());
-    let starknet_version = StarknetVersion("test".to_owned());
+    let starknet_version = StarknetVersion(vec![123]);
     block.header.block_hash = block_hash;
     block.header.sequencer = sequencer_address;
     block.header.timestamp = timestamp;
@@ -971,7 +971,7 @@ async fn get_block_w_transaction_hashes() {
             },
             l1_data_gas_price: ResourcePrice::default(),
             l1_da_mode: L1DataAvailabilityMode::Calldata,
-            starknet_version: starknet_version.0.clone(),
+            starknet_version: starknet_version.to_string(),
         }),
         status: None,
         transactions: Transactions::Hashes(
@@ -989,7 +989,7 @@ async fn get_block_w_transaction_hashes() {
         *pending_block.timestamp_mutable() = pending_timestamp;
         *pending_block.sequencer_address_mutable() = pending_sequencer_address;
         pending_block.set_l1_gas_price(&pending_l1_gas_price);
-        *pending_block.starknet_version_mutable() = starknet_version.0;
+        *pending_block.starknet_version_mutable() = starknet_version.to_string();
     }
     // Using call_api_then_assert_and_validate_schema_for_result in order to validate the schema for
     // pending block.
diff --git a/crates/papyrus_rpc/src/v0_7/block.rs b/crates/papyrus_rpc/src/v0_7/block.rs
index 0fc352f09b..e1f6c9f0de 100644
--- a/crates/papyrus_rpc/src/v0_7/block.rs
+++ b/crates/papyrus_rpc/src/v0_7/block.rs
@@ -63,7 +63,7 @@ impl From<starknet_api::block::BlockHeader> for BlockHeader {
                 price_in_fri: header.l1_data_gas_price.price_in_fri,
             },
             l1_da_mode: header.l1_da_mode,
-            starknet_version: header.starknet_version.0,
+            starknet_version: header.starknet_version.to_string(),
         }
     }
 }
diff --git a/crates/papyrus_storage/src/header_test.rs b/crates/papyrus_storage/src/header_test.rs
index d5342cfad4..4bbc0d745c 100644
--- a/crates/papyrus_storage/src/header_test.rs
+++ b/crates/papyrus_storage/src/header_test.rs
@@ -172,8 +172,8 @@ async fn starknet_version() {
         reader.begin_ro_txn().unwrap().get_starknet_version(BlockNumber(1)).unwrap();
     assert!(non_existing_block_starknet_version.is_none());
 
-    let second_version = StarknetVersion("second_version".to_string());
-    let yet_another_version = StarknetVersion("yet_another_version".to_string());
+    let second_version = StarknetVersion(vec![2]);
+    let yet_another_version = StarknetVersion(vec![3]);
 
     writer
         .begin_rw_txn()
diff --git a/crates/papyrus_storage/src/serialization/serializers.rs b/crates/papyrus_storage/src/serialization/serializers.rs
index f707da82ac..0a32509541 100644
--- a/crates/papyrus_storage/src/serialization/serializers.rs
+++ b/crates/papyrus_storage/src/serialization/serializers.rs
@@ -386,7 +386,7 @@ auto_storage_serde! {
     pub enum StructType {
         Struct = 0,
     }
-    pub struct StarknetVersion(pub String);
+    pub struct StarknetVersion(pub Vec<u8>);
     pub struct StateDiffCommitment(pub PoseidonHash);
     pub struct Tip(pub u64);
     pub struct TransactionCommitment(pub StarkHash);
diff --git a/crates/papyrus_test_utils/src/lib.rs b/crates/papyrus_test_utils/src/lib.rs
index 012f2331c2..1f125f35d0 100644
--- a/crates/papyrus_test_utils/src/lib.rs
+++ b/crates/papyrus_test_utils/src/lib.rs
@@ -479,7 +479,7 @@ auto_impl_get_test_instance! {
         MulMod = 9,
         RangeCheck96 = 10,
     }
-    pub struct StarknetVersion(pub String);
+    pub struct StarknetVersion(pub Vec<u8>);
     pub struct Calldata(pub Arc<Vec<Felt>>);
     pub struct ClassHash(pub StarkHash);
     pub struct CompiledClassHash(pub StarkHash);
diff --git a/crates/starknet_api/src/block.rs b/crates/starknet_api/src/block.rs
index dd0737f23b..da6dfd082c 100644
--- a/crates/starknet_api/src/block.rs
+++ b/crates/starknet_api/src/block.rs
@@ -5,6 +5,7 @@ mod block_test;
 use std::fmt::Display;
 
 use derive_more::Display;
+use itertools::Itertools;
 use serde::{Deserialize, Serialize};
 use starknet_types_core::hash::{Poseidon, StarkHash as CoreStarkHash};
 
@@ -22,6 +23,7 @@ use crate::data_availability::L1DataAvailabilityMode;
 use crate::hash::StarkHash;
 use crate::serde_utils::{BytesAsHex, PrefixedBytesAsHex};
 use crate::transaction::{Transaction, TransactionHash, TransactionOutput};
+use crate::StarknetApiError;
 
 /// A block.
 #[derive(Debug, Default, Clone, Eq, PartialEq, Deserialize, Serialize)]
@@ -33,18 +35,49 @@ pub struct Block {
 }
 
 /// A version of the Starknet protocol used when creating a block.
-#[derive(Clone, Debug, Eq, PartialEq, Hash, Deserialize, Serialize, PartialOrd, Ord)]
-pub struct StarknetVersion(pub String);
+#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
+pub struct StarknetVersion(pub Vec<u8>);
 
 impl Default for StarknetVersion {
     fn default() -> Self {
-        Self("0.0.0".to_string())
+        Self(vec![0, 0, 0])
     }
 }
 
 impl Display for StarknetVersion {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}", self.0)
+        write!(f, "{}", self.0.iter().map(|x| x.to_string()).join("."))
+    }
+}
+
+impl TryFrom<String> for StarknetVersion {
+    type Error = StarknetApiError;
+
+    /// Parses a string separated by dots into a StarknetVersion.
+    fn try_from(starknet_version: String) -> Result<Self, StarknetApiError> {
+        Ok(Self(starknet_version.split('.').map(|x| x.parse::<u8>()).try_collect()?))
+    }
+}
+
+impl Serialize for StarknetVersion {
+    fn serialize<S>(
+        &self,
+        serializer: S,
+    ) -> Result<<S as serde::Serializer>::Ok, <S as serde::Serializer>::Error>
+    where
+        S: serde::Serializer,
+    {
+        self.to_string().serialize(serializer)
+    }
+}
+
+impl<'de> Deserialize<'de> for StarknetVersion {
+    fn deserialize<D>(deserializer: D) -> Result<Self, <D as serde::Deserializer<'de>>::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        let version = String::deserialize(deserializer)?;
+        StarknetVersion::try_from(version).map_err(serde::de::Error::custom)
     }
 }
 
diff --git a/crates/starknet_api/src/block_hash/block_hash_calculator.rs b/crates/starknet_api/src/block_hash/block_hash_calculator.rs
index ae16d69cef..fd0ee1377b 100644
--- a/crates/starknet_api/src/block_hash/block_hash_calculator.rs
+++ b/crates/starknet_api/src/block_hash/block_hash_calculator.rs
@@ -42,8 +42,8 @@ pub enum BlockHashVersion {
 impl From<BlockHashVersion> for StarknetVersion {
     fn from(value: BlockHashVersion) -> Self {
         match value {
-            BlockHashVersion::VO_13_2 => Self("0.13.2".to_owned()),
-            BlockHashVersion::VO_13_3 => Self("0.13.3".to_owned()),
+            BlockHashVersion::VO_13_2 => Self(vec![0, 13, 2]),
+            BlockHashVersion::VO_13_3 => Self(vec![0, 13, 3]),
         }
     }
 }
@@ -107,7 +107,9 @@ pub fn calculate_block_hash(
                 (header.starknet_version >= BlockHashVersion::VO_13_3.into())
                     .then_some(l2_gas_prices.into_iter())
             })
-            .chain(&ascii_as_felt(&header.starknet_version.0).expect("Expect ASCII version"))
+            .chain(
+                &ascii_as_felt(&header.starknet_version.to_string()).expect("Expect ASCII version"),
+            )
             .chain(&Felt::ZERO)
             .chain(&header.parent_hash.0)
             .get_poseidon_hash(),
diff --git a/crates/starknet_api/src/block_test.rs b/crates/starknet_api/src/block_test.rs
index 632ed6d871..bb5b199acf 100644
--- a/crates/starknet_api/src/block_test.rs
+++ b/crates/starknet_api/src/block_test.rs
@@ -1,4 +1,6 @@
-use super::verify_block_signature;
+use serde_json::json;
+
+use super::{verify_block_signature, StarknetVersion};
 use crate::block::{BlockHash, BlockNumber, BlockSignature};
 use crate::core::{GlobalRoot, SequencerPublicKey};
 use crate::crypto::utils::{PublicKey, Signature};
@@ -45,3 +47,20 @@ fn block_signature_verification() {
             .unwrap()
     );
 }
+
+#[test]
+fn test_vec_version() {
+    assert_eq!(StarknetVersion::default().to_string(), "0.0.0");
+
+    let version_123 = StarknetVersion::try_from("1.2.3".to_owned()).unwrap();
+    assert_eq!(version_123, StarknetVersion(vec![1, 2, 3]));
+
+    let serialized_123 = json!(version_123);
+    assert_eq!(serialized_123, "1.2.3".to_owned());
+    assert_eq!(serde_json::from_value::<StarknetVersion>(serialized_123).unwrap(), version_123);
+
+    assert!(StarknetVersion(vec![0, 10, 0]) > StarknetVersion(vec![0, 2, 5]));
+    assert!(StarknetVersion(vec![0, 13, 1]) > StarknetVersion(vec![0, 12, 2]));
+    assert!(StarknetVersion(vec![0, 13, 0, 1]) > StarknetVersion(vec![0, 13, 0]));
+    assert!(StarknetVersion(vec![0, 13, 0]) > StarknetVersion(vec![0, 13]));
+}
diff --git a/crates/starknet_client/src/reader/objects/block.rs b/crates/starknet_client/src/reader/objects/block.rs
index fdda5eceaa..e5de2de716 100644
--- a/crates/starknet_client/src/reader/objects/block.rs
+++ b/crates/starknet_client/src/reader/objects/block.rs
@@ -52,7 +52,7 @@ pub struct BlockPostV0_13_1 {
     pub transaction_receipts: Vec<TransactionReceipt>,
     // Default since old blocks don't include this field.
     #[serde(default)]
-    pub starknet_version: String,
+    pub starknet_version: StarknetVersion,
     // Additions to the block structure in V0.13.1.
     pub l1_da_mode: L1DataAvailabilityMode,
     // Replacing the eth_l1_gas_price & strk_l1_gas_price fields with a single field.
@@ -213,7 +213,7 @@ impl Block {
         }
     }
 
-    pub fn starknet_version(&self) -> String {
+    pub fn starknet_version(&self) -> StarknetVersion {
         match self {
             Block::PostV0_13_1(block) => block.starknet_version.clone(),
         }
@@ -305,7 +305,7 @@ impl Block {
             state_diff_length: self.state_diff_length(),
             n_transactions,
             n_events,
-            starknet_version: StarknetVersion(self.starknet_version()),
+            starknet_version: self.starknet_version(),
         };
 
         let (transactions, transaction_receipts) = self.get_body();