diff --git a/Cargo.lock b/Cargo.lock
index be3d774c0..f5b1b48ba 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -647,12 +647,6 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
-[[package]]
-name = "base64"
-version = "0.20.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ea22880d78093b0cbe17c89f64a7d457941e65759157ec6cb31a31d652b05e5"
-
 [[package]]
 name = "base64"
 version = "0.21.0"
@@ -6559,7 +6553,7 @@ name = "pallet-manta-pay"
 version = "0.4.0"
 dependencies = [
  "anyhow",
- "base64 0.20.0",
+ "base64 0.21.0",
  "frame-benchmarking",
  "frame-support",
  "frame-system",
diff --git a/pallets/manta-pay/Cargo.toml b/pallets/manta-pay/Cargo.toml
index 689391c1e..52a85ab28 100644
--- a/pallets/manta-pay/Cargo.toml
+++ b/pallets/manta-pay/Cargo.toml
@@ -87,7 +87,7 @@ precompute-coins = [
 [dependencies]
 # utils
 anyhow = { version = "1.0.55", optional = true, default-features = false }
-base64 = { version = "0.20", default-features = false, features = ["alloc"] }
+base64 = { version = "0.21", default-features = false, features = ["alloc"] }
 indoc = { version = "1.0.3", optional = true, default-features = false }
 rand_chacha = { version = "0.3.1", optional = true, default-features = false }
 tempfile = { version = "3.3.0", optional = true, default-features = false }