diff --git a/Cargo.lock b/Cargo.lock
index cef33101b5f..40390b9831b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -589,9 +589,9 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "base64"
-version = "0.21.2"
+version = "0.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d"
+checksum = "9ba43ea6f343b788c8764558649e08df62f86c6ef251fdaeb1ffd010a9ae50a2"
 
 [[package]]
 name = "base64ct"
@@ -2429,7 +2429,7 @@ dependencies = [
 name = "keygen"
 version = "0.1.0"
 dependencies = [
- "base64 0.21.2",
+ "base64 0.21.4",
  "clap",
  "libp2p-core",
  "libp2p-identity",
@@ -2682,7 +2682,7 @@ version = "0.45.0"
 dependencies = [
  "async-std",
  "asynchronous-codec",
- "base64 0.21.2",
+ "base64 0.21.4",
  "byteorder",
  "bytes",
  "either",
@@ -2742,7 +2742,7 @@ name = "libp2p-identity"
 version = "0.2.1"
 dependencies = [
  "asn1_der",
- "base64 0.21.2",
+ "base64 0.21.4",
  "bs58",
  "criterion",
  "ed25519-dalek",
@@ -4488,7 +4488,7 @@ version = "0.11.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cde824a14b7c14f85caff81225f411faacc04a2013f41670f41443742b1c1c55"
 dependencies = [
- "base64 0.21.2",
+ "base64 0.21.4",
  "bytes",
  "encoding_rs",
  "futures-core",
@@ -4763,7 +4763,7 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d194b56d58803a43635bdc398cd17e383d6f71f9182b9a192c127ca42494a59b"
 dependencies = [
- "base64 0.21.2",
+ "base64 0.21.4",
 ]
 
 [[package]]
@@ -5386,7 +5386,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf0fe180d5f1f7dd32bb5f1a8d19231bb63dc9bbb1985e1dbb6f07163b6a8578"
 dependencies = [
  "async-trait",
- "base64 0.21.2",
+ "base64 0.21.4",
  "cookie",
  "fantoccini",
  "futures",
diff --git a/identity/Cargo.toml b/identity/Cargo.toml
index e3f966ebafd..1e3ae46f7ed 100644
--- a/identity/Cargo.toml
+++ b/identity/Cargo.toml
@@ -40,7 +40,7 @@ peerid = [ "dep:multihash", "dep:bs58", "dep:rand", "dep:thiserror", "dep:sha2"
 
 [dev-dependencies]
 quickcheck = { workspace = true }
-base64 = "0.21.2"
+base64 = "0.21.4"
 serde_json = "1.0"
 rmp-serde = "1.0"
 criterion = "0.5"
diff --git a/misc/keygen/Cargo.toml b/misc/keygen/Cargo.toml
index 514f2fe4c1f..3c6dad73303 100644
--- a/misc/keygen/Cargo.toml
+++ b/misc/keygen/Cargo.toml
@@ -15,5 +15,5 @@ zeroize = "1"
 serde = { version = "1.0.164", features = ["derive"] }
 serde_json = "1.0.99"
 libp2p-core = { workspace = true }
-base64 = "0.21.2"
+base64 = "0.21.4"
 libp2p-identity = { workspace = true }
diff --git a/protocols/gossipsub/Cargo.toml b/protocols/gossipsub/Cargo.toml
index 5b4a5e54575..838a9d73c6e 100644
--- a/protocols/gossipsub/Cargo.toml
+++ b/protocols/gossipsub/Cargo.toml
@@ -15,7 +15,7 @@ wasm-bindgen = ["getrandom/js", "instant/wasm-bindgen"]
 
 [dependencies]
 asynchronous-codec = "0.6"
-base64 = "0.21.2"
+base64 = "0.21.4"
 byteorder = "1.3.4"
 bytes = "1.4"
 either = "1.5"