diff --git a/Cargo.lock b/Cargo.lock
index 9b8dd1e..906caf8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -16,9 +16,9 @@ checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
 
 [[package]]
 name = "base64ct"
-version = "1.6.0"
+version = "1.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
+checksum = "89e25b6adfb930f02d1981565a6e5d9c547ac15a96606256d3b59040e5cd4ca3"
 
 [[package]]
 name = "block-buffer"
diff --git a/jose-b64/Cargo.toml b/jose-b64/Cargo.toml
index 08e6fda..e4e1df7 100644
--- a/jose-b64/Cargo.toml
+++ b/jose-b64/Cargo.toml
@@ -19,7 +19,7 @@ json = ["serde", "dep:serde_json"]
 serde = ["dep:serde"]
 
 [dependencies]
-base64ct = { version = "1.6.0", default-features = false, features = ["alloc"] }
+base64ct = { version = "1.7.3", default-features = false, features = ["alloc"] }
 
 # optional dependencies
 zeroize = { version = "1.7.0", default-features = false, optional = true, features = ["alloc", "serde"] }