diff --git a/Cargo.lock b/Cargo.lock
index 2e79300cff9..79e7af8ad27 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -608,9 +608,9 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "base64"
-version = "0.21.5"
+version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "35636a1494ede3b646cc98f74f8e62c773a38a659ebc777a2cf26b9b74171df9"
+checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
 [[package]]
 name = "base64ct"
@@ -2531,7 +2531,7 @@ dependencies = [
 name = "keygen"
 version = "0.1.0"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.7",
  "clap",
  "libp2p-core",
  "libp2p-identity",
@@ -2775,7 +2775,7 @@ version = "0.46.1"
 dependencies = [
  "async-std",
  "asynchronous-codec",
- "base64 0.21.5",
+ "base64 0.21.7",
  "byteorder",
  "bytes",
  "either",
@@ -2835,7 +2835,7 @@ name = "libp2p-identity"
 version = "0.2.8"
 dependencies = [
  "asn1_der",
- "base64 0.21.5",
+ "base64 0.21.7",
  "bs58",
  "criterion",
  "ed25519-dalek",
@@ -3229,7 +3229,7 @@ dependencies = [
 name = "libp2p-server"
 version = "0.12.5"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.7",
  "clap",
  "futures",
  "futures-timer",
@@ -4239,7 +4239,7 @@ version = "3.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3163d2912b7c3b52d651a055f2c7eec9ba5cd22d26ef75b8dd3a59980b185923"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.7",
  "serde",
 ]
 
@@ -4844,7 +4844,7 @@ version = "0.11.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "046cd98826c46c2ac8ddecae268eb5c2e58628688a5fc7a2643704a73faba95b"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.7",
  "bytes",
  "encoding_rs",
  "futures-core",
@@ -5131,7 +5131,7 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2d3987094b1d07b653b7dfdc3f70ce9a1da9c51ac18c1b06b662e4f9a0e9f4b2"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.7",
 ]
 
 [[package]]
@@ -5597,7 +5597,7 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7beb1624a3ea34778d58d30e2b8606b4d29fe65e87c4d50b87ed30afd5c3830c"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.7",
  "crc",
  "lazy_static",
  "md-5",
@@ -5730,7 +5730,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf0fe180d5f1f7dd32bb5f1a8d19231bb63dc9bbb1985e1dbb6f07163b6a8578"
 dependencies = [
  "async-trait",
- "base64 0.21.5",
+ "base64 0.21.7",
  "cookie",
  "fantoccini",
  "futures",
@@ -5938,7 +5938,7 @@ checksum = "3082666a3a6433f7f511c7192923fa1fe07c69332d3c6a2e6bb040b569199d5a"
 dependencies = [
  "async-trait",
  "axum 0.6.20",
- "base64 0.21.5",
+ "base64 0.21.7",
  "bytes",
  "futures-core",
  "futures-util",
@@ -6143,7 +6143,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58f4fcb97da0426e8146fe0e9b78cc13120161087256198701d12d9df77f7701"
 dependencies = [
  "async-trait",
- "base64 0.21.5",
+ "base64 0.21.7",
  "futures",
  "log",
  "md-5",
diff --git a/identity/Cargo.toml b/identity/Cargo.toml
index e7aa15fef07..012949aa758 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 = "0.21.5"
+base64 = "0.21.7"
 serde_json = "1.0"
 rmp-serde = "1.1"
 criterion = "0.5"
diff --git a/misc/keygen/Cargo.toml b/misc/keygen/Cargo.toml
index 9c1c37bd428..ae8cbf02f91 100644
--- a/misc/keygen/Cargo.toml
+++ b/misc/keygen/Cargo.toml
@@ -18,7 +18,7 @@ zeroize = "1"
 serde = { version = "1.0.193", features = ["derive"] }
 serde_json = "1.0.108"
 libp2p-core = { workspace = true }
-base64 = "0.21.5"
+base64 = "0.21.7"
 libp2p-identity = { workspace = true }
 
 [lints]
diff --git a/protocols/gossipsub/Cargo.toml b/protocols/gossipsub/Cargo.toml
index 37873de39f9..04afdc261fe 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 = "0.21.5"
+base64 = "0.21.7"
 byteorder = "1.5.0"
 bytes = "1.5"
 either = "1.9"