diff --git a/Cargo.lock b/Cargo.lock
index 1ed06136646..f8cc1b15668 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -615,6 +615,12 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "base64ct"
 version = "1.6.0"
@@ -2521,7 +2527,7 @@ dependencies = [
 name = "keygen"
 version = "0.1.0"
 dependencies = [
- "base64 0.21.7",
+ "base64 0.22.1",
  "clap",
  "libp2p-core",
  "libp2p-identity",
@@ -2765,7 +2771,7 @@ version = "0.46.1"
 dependencies = [
  "async-std",
  "asynchronous-codec",
- "base64 0.21.7",
+ "base64 0.22.1",
  "byteorder",
  "bytes",
  "either",
@@ -2825,7 +2831,7 @@ name = "libp2p-identity"
 version = "0.2.8"
 dependencies = [
  "asn1_der",
- "base64 0.21.7",
+ "base64 0.22.1",
  "bs58",
  "criterion",
  "ed25519-dalek",
@@ -3219,7 +3225,7 @@ dependencies = [
 name = "libp2p-server"
 version = "0.12.6"
 dependencies = [
- "base64 0.21.7",
+ "base64 0.22.1",
  "clap",
  "futures",
  "futures-timer",
diff --git a/identity/Cargo.toml b/identity/Cargo.toml
index 920b9a990e4..fc4cd23fb05 100644
--- a/identity/Cargo.toml
+++ b/identity/Cargo.toml
@@ -42,7 +42,7 @@ rand = ["dep:rand", "ed25519-dalek?/rand_core"]
 
 [dev-dependencies]
 quickcheck = { workspace = true }
-base64 = "0.21.7"
+base64 = "0.22.1"
 serde_json = "1.0"
 rmp-serde = "1.1"
 criterion = "0.5"
diff --git a/misc/keygen/Cargo.toml b/misc/keygen/Cargo.toml
index c7989fb4793..5d1b7a30889 100644
--- a/misc/keygen/Cargo.toml
+++ b/misc/keygen/Cargo.toml
@@ -18,7 +18,7 @@ zeroize = "1"
 serde = { version = "1.0.196", features = ["derive"] }
 serde_json = "1.0.113"
 libp2p-core = { workspace = true }
-base64 = "0.21.7"
+base64 = "0.22.1"
 libp2p-identity = { workspace = true }
 
 [lints]
diff --git a/misc/server/Cargo.toml b/misc/server/Cargo.toml
index 9653ddc5d76..2335e2d08fe 100644
--- a/misc/server/Cargo.toml
+++ b/misc/server/Cargo.toml
@@ -11,7 +11,7 @@ license = "MIT"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-base64 = "0.21"
+base64 = "0.22"
 clap = { version = "4.4.16", features = ["derive"] }
 futures = "0.3"
 futures-timer = "3"
diff --git a/protocols/gossipsub/Cargo.toml b/protocols/gossipsub/Cargo.toml
index 4d484a81249..98aa06eddaf 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 = { workspace = true }
-base64 = "0.21.7"
+base64 = "0.22.1"
 byteorder = "1.5.0"
 bytes = "1.5"
 either = "1.9"