diff --git a/Cargo.lock b/Cargo.lock
index 23a5b4d2..6a2ded80 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -619,9 +619,9 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "base64"
-version = "0.21.3"
+version = "0.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "414dcefbc63d77c526a76b3afcf6fbb9b5e2791c19c3aa2297733208750c6e53"
+checksum = "9ba43ea6f343b788c8764558649e08df62f86c6ef251fdaeb1ffd010a9ae50a2"
 
 [[package]]
 name = "base64ct"
@@ -2464,7 +2464,7 @@ dependencies = [
 name = "keygen"
 version = "0.1.0"
 dependencies = [
- "base64 0.21.3",
+ "base64 0.21.4",
  "clap",
  "libp2p-core",
  "libp2p-identity",
@@ -2714,7 +2714,7 @@ version = "0.45.1"
 dependencies = [
  "async-std",
  "asynchronous-codec",
- "base64 0.21.3",
+ "base64 0.21.4",
  "byteorder",
  "bytes",
  "either",
@@ -2774,7 +2774,7 @@ name = "libp2p-identity"
 version = "0.2.3"
 dependencies = [
  "asn1_der",
- "base64 0.21.3",
+ "base64 0.21.4",
  "bs58",
  "criterion",
  "ed25519-dalek",
@@ -3157,7 +3157,7 @@ dependencies = [
 name = "libp2p-server"
 version = "0.12.3"
 dependencies = [
- "base64 0.21.3",
+ "base64 0.21.4",
  "clap",
  "env_logger 0.10.0",
  "futures",
@@ -4621,7 +4621,7 @@ version = "0.11.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e9ad3fe7488d7e34558a2033d45a0c90b72d97b4f80705666fea71472e2e6a1"
 dependencies = [
- "base64 0.21.3",
+ "base64 0.21.4",
  "bytes",
  "encoding_rs",
  "futures-core",
@@ -4915,7 +4915,7 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2d3987094b1d07b653b7dfdc3f70ce9a1da9c51ac18c1b06b662e4f9a0e9f4b2"
 dependencies = [
- "base64 0.21.3",
+ "base64 0.21.4",
 ]
 
 [[package]]
@@ -5543,7 +5543,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf0fe180d5f1f7dd32bb5f1a8d19231bb63dc9bbb1985e1dbb6f07163b6a8578"
 dependencies = [
  "async-trait",
- "base64 0.21.3",
+ "base64 0.21.4",
  "cookie",
  "fantoccini",
  "futures",
diff --git a/identity/Cargo.toml b/identity/Cargo.toml
index e5da8595..d8f4d9ef 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 = "0.21.3"
+base64 = "0.21.4"
 serde_json = "1.0"
 rmp-serde = "1.1"
 criterion = "0.5"
diff --git a/misc/keygen/Cargo.toml b/misc/keygen/Cargo.toml
index a24a7fa8..64f4d28a 100644
--- a/misc/keygen/Cargo.toml
+++ b/misc/keygen/Cargo.toml
@@ -15,5 +15,5 @@ zeroize = "1"
 serde = { version = "1.0.188", features = ["derive"] }
 serde_json = "1.0.106"
 libp2p-core = { workspace = true }
-base64 = "0.21.3"
+base64 = "0.21.4"
 libp2p-identity = { workspace = true }
diff --git a/protocols/gossipsub/Cargo.toml b/protocols/gossipsub/Cargo.toml
index 813924ec..a54b277c 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 = "0.21.3"
+base64 = "0.21.4"
 byteorder = "1.3.4"
 bytes = "1.5"
 either = "1.9"