diff --git a/crypto_core/Cargo.toml b/crypto_core/Cargo.toml
index 81e3786..137ed47 100644
--- a/crypto_core/Cargo.toml
+++ b/crypto_core/Cargo.toml
@@ -31,7 +31,7 @@ aes-gcm = "0.10"
 aes = { version = "0.8", optional = true }
 
 # CTR mode for streaming encryption
-ctr = { version = "0.9", optional = true }
+ctr = { version = "0.10", optional = true }
 
 # Cipher traits (BlockEncrypt etc.)
 cipher = { version = "0.5", optional = true }