diff --git a/Cargo-minimal.lock b/Cargo-minimal.lock
index 11991ea31c..f30294e9f2 100644
--- a/Cargo-minimal.lock
+++ b/Cargo-minimal.lock
@@ -25,9 +25,9 @@ dependencies = [
 
 [[package]]
 name = "base64"
-version = "0.21.3"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "414dcefbc63d77c526a76b3afcf6fbb9b5e2791c19c3aa2297733208750c6e53"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
 
 [[package]]
 name = "bech32"
diff --git a/Cargo-recent.lock b/Cargo-recent.lock
index 8383f5228f..57490f6713 100644
--- a/Cargo-recent.lock
+++ b/Cargo-recent.lock
@@ -25,9 +25,9 @@ dependencies = [
 
 [[package]]
 name = "base64"
-version = "0.21.3"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "414dcefbc63d77c526a76b3afcf6fbb9b5e2791c19c3aa2297733208750c6e53"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
 
 [[package]]
 name = "bech32"
diff --git a/bitcoin/Cargo.toml b/bitcoin/Cargo.toml
index 4f4a6c8b30..6202839e54 100644
--- a/bitcoin/Cargo.toml
+++ b/bitcoin/Cargo.toml
@@ -38,7 +38,7 @@ io = { package = "bitcoin-io", version = "0.1.1", default-features = false, feat
 secp256k1 = { version = "0.29.0", default-features = false, features = ["hashes", "alloc"] }
 units = { package = "bitcoin-units", version = "0.1.0", default-features = false, features = ["alloc"] }
 
-base64 = { version = "0.21.3", optional = true }
+base64 = { version = "0.22.0", optional = true }
 ordered = { version = "0.2.0", optional = true }
 # Only use this feature for no-std builds, otherwise use bitcoinconsensus-std.
 bitcoinconsensus = { version = "0.105.0+25.1", default-features = false, optional = true }