diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9cf7c402..ba8b2058 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -144,7 +144,8 @@ workflows:
               geth_version: [
                 "1_14_0", "1_14_2", "1_14_3", "1_14_4", "1_14_5", "1_14_6",
                 "1_14_7", "1_14_8", "1_14_9", "1_14_10", "1_14_11", "1_14_12",
-                "1_14_13"
+                "1_14_13", "1_15_0", "1_15_1", "1_15_2", "1_15_3", "1_15_4",
+                "1_15_5"
               ]
           name: "py3<< matrix.python_minor_version >>-install-geth-v<< matrix.geth_version >>"
       - windows-wheel:
diff --git a/README.md b/README.md
index f0ce030a..2b5f5473 100644
--- a/README.md
+++ b/README.md
@@ -116,19 +116,19 @@ the current list of supported versions.
 Installation can be done via the command line:
 
 ```bash
-$ python -m geth.install v1.14.13
+$ python -m geth.install v1.15.5
 ```
 
 Or from python using the `install_geth` function.
 
 ```python
 >>> from geth import install_geth
->>> install_geth('v1.14.13')
+>>> install_geth('v1.15.5')
 ```
 
 The installed binary can be found in the `$HOME/.py-geth` directory, under your
-home directory.  The `v1.14.13` binary would be located at
-`$HOME/.py-geth/geth-v1.14.13/bin/geth`.
+home directory.  The `v1.15.5` binary would be located at
+`$HOME/.py-geth/geth-v1.15.5/bin/geth`.
 
 ## About `DevGethProcess`
 
diff --git a/geth/genesis.json b/geth/genesis.json
index e031182f..b4b995f5 100644
--- a/geth/genesis.json
+++ b/geth/genesis.json
@@ -16,7 +16,20 @@
         "terminalTotalDifficulty": 0,
         "terminalTotalDifficultyPassed": true,
         "shanghaiTime": 0,
-        "cancunTime": 0
+        "cancunTime": 0,
+        "blobSchedule": {
+            "cancun": {
+                "target": 3,
+                "max": 6,
+                "baseFeeUpdateFraction": 3338477
+            },
+            "prague": {
+                "target": 6,
+                "max": 9,
+                "baseFeeUpdateFraction": 5007716
+            }
+        }
+
     },
     "nonce": "0x0",
     "timestamp": "0x0",
diff --git a/geth/install.py b/geth/install.py
index 9d71d350..a54bce16 100644
--- a/geth/install.py
+++ b/geth/install.py
@@ -47,6 +47,12 @@
 V1_14_11 = "v1.14.11"
 V1_14_12 = "v1.14.12"
 V1_14_13 = "v1.14.13"
+V1_15_0 = "v1.15.0"
+V1_15_1 = "v1.15.1"
+V1_15_2 = "v1.15.2"
+V1_15_3 = "v1.15.3"
+V1_15_4 = "v1.15.4"
+V1_15_5 = "v1.15.5"
 
 
 LINUX = "linux"
@@ -343,6 +349,12 @@ def install_from_source_code_release(identifier: str) -> None:
 install_v1_14_11 = functools.partial(install_from_source_code_release, V1_14_11)
 install_v1_14_12 = functools.partial(install_from_source_code_release, V1_14_12)
 install_v1_14_13 = functools.partial(install_from_source_code_release, V1_14_13)
+install_v1_15_0 = functools.partial(install_from_source_code_release, V1_15_0)
+install_v1_15_1 = functools.partial(install_from_source_code_release, V1_15_1)
+install_v1_15_2 = functools.partial(install_from_source_code_release, V1_15_2)
+install_v1_15_3 = functools.partial(install_from_source_code_release, V1_15_3)
+install_v1_15_4 = functools.partial(install_from_source_code_release, V1_15_4)
+install_v1_15_5 = functools.partial(install_from_source_code_release, V1_15_5)
 
 INSTALL_FUNCTIONS = {
     LINUX: {
@@ -359,6 +371,12 @@ def install_from_source_code_release(identifier: str) -> None:
         V1_14_11: install_v1_14_11,
         V1_14_12: install_v1_14_12,
         V1_14_13: install_v1_14_13,
+        V1_15_0: install_v1_15_0,
+        V1_15_1: install_v1_15_1,
+        V1_15_2: install_v1_15_2,
+        V1_15_3: install_v1_15_3,
+        V1_15_4: install_v1_15_4,
+        V1_15_5: install_v1_15_5,
     },
     OSX: {
         V1_14_0: install_v1_14_0,
@@ -374,6 +392,12 @@ def install_from_source_code_release(identifier: str) -> None:
         V1_14_11: install_v1_14_11,
         V1_14_12: install_v1_14_12,
         V1_14_13: install_v1_14_13,
+        V1_15_0: install_v1_15_0,
+        V1_15_1: install_v1_15_1,
+        V1_15_2: install_v1_15_2,
+        V1_15_3: install_v1_15_3,
+        V1_15_4: install_v1_15_4,
+        V1_15_5: install_v1_15_5,
     },
 }
 
diff --git a/geth/utils/validation.py b/geth/utils/validation.py
index 40fc8c16..f3c16bdd 100644
--- a/geth/utils/validation.py
+++ b/geth/utils/validation.py
@@ -11,6 +11,7 @@
     BaseModel,
     ConfigDict,
     ValidationError,
+    model_validator,
 )
 
 from geth.exceptions import (
@@ -94,8 +95,23 @@ class GenesisDataConfig(BaseModel):
     # post-merge, timestamp is used for network transitions
     shanghaiTime: int = 0
     cancunTime: int = 0
-
-    model_config = ConfigDict(extra="forbid")
+    pragueTime: int = 0
+    # blobs
+    blobSchedule: dict[str, Any] = {}
+
+    @model_validator(mode="after")
+    def check_blob_schedule_required(
+        self,
+    ) -> GenesisDataConfig:
+        if self.cancunTime > 0 and self.blobSchedule.get("cancun") is None:
+            raise PyGethValueError(
+                "blobSchedule 'cancun' value is required when cancunTime is set"
+            )
+        if self.pragueTime > 0 and self.blobSchedule.get("prague") is None:
+            raise PyGethValueError(
+                "blobSchedule 'prague' value is required when pragueTime is set"
+            )
+        return self
 
 
 class GenesisData(BaseModel):
diff --git a/newsfragments/251.feature.rst b/newsfragments/251.feature.rst
new file mode 100644
index 00000000..d15364da
--- /dev/null
+++ b/newsfragments/251.feature.rst
@@ -0,0 +1 @@
+Adds support for geth ``v1.15.0`` through ``v1.15.5``,  add new fields ``blobSchedule`` and ``pragueTime`` to genesis data config.
diff --git a/tests/core/utility/test_validation.py b/tests/core/utility/test_validation.py
index 397971e8..d77034ea 100644
--- a/tests/core/utility/test_validation.py
+++ b/tests/core/utility/test_validation.py
@@ -85,6 +85,15 @@ def test_validate_genesis_data_good(genesis_data):
             "config": None,
         },
         "kangaroo",
+        {
+            "difficulty": "0x00012131",
+            "nonce": "abc",
+            "timestamp": "1234",
+            "config": {
+                "cancunTime": 5,
+                "blobSchedule": {},
+            },
+        },
     ],
 )
 def test_validate_genesis_data_bad(genesis_data):
@@ -127,6 +136,8 @@ def test_validate_genesis_data_bad(genesis_data):
                     "terminalTotalDifficultyPassed": True,
                     "shanghaiTime": 0,
                     "cancunTime": 0,
+                    "pragueTime": 0,
+                    "blobSchedule": {},
                 },
                 "difficulty": "0x00012131",
                 "excessBlobGas": "0x0",
@@ -179,6 +190,8 @@ def test_validate_genesis_data_bad(genesis_data):
                     "terminalTotalDifficultyPassed": True,
                     "shanghaiTime": 0,
                     "cancunTime": 0,
+                    "pragueTime": 0,
+                    "blobSchedule": {},
                 },
                 "difficulty": "0x00012131",
                 "excessBlobGas": "0x0",
diff --git a/tox.ini b/tox.ini
index 65fc4cdc..c6bc6233 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,8 @@ envlist=
     py{38,39,310,311,312,313}-lint
     py{38,39,310,311,312,313}-install-geth-{\
         v1_14_0, v1_14_2, v1_14_3, v1_14_4, v1_14_5, v1_14_6, v1_14_7, \
-        v1_14_8, v1_14_9, v1_14_10, v1_14_11, v1_14_12, v1_14_13 \
+        v1_14_8, v1_14_9, v1_14_10, v1_14_11, v1_14_12, v1_14_13, v1_15_0, \
+        v1_15_1, v1_15_2, v1_15_3, v1_15_4, v1_15_5 \
     }
     py{38,39,310,311,312,313}-wheel
     windows-wheel