diff --git a/Cargo.lock b/Cargo.lock
index 0f1cf51b..ef19d71f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1802,7 +1802,7 @@ dependencies = [
 name = "kopiur-kopia"
 version = "0.1.0"
 dependencies = [
- "base64 0.22.1",
+ "base64 0.23.1",
  "chrono",
  "serde",
  "serde_json",
diff --git a/Cargo.toml b/Cargo.toml
index 9d160c10..8f3444b0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,7 +39,7 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 serde_yaml = "0.9"
 # kopia's `--root-ca-pem-base64` S3 flag takes the PEM base64-encoded on argv.
-base64 = "0.22"
+base64 = "0.23"
 
 # Async runtime
 tokio = { version = "1", features = ["macros", "rt-multi-thread", "process", "io-util", "time", "signal"] }