diff --git a/Cargo.toml b/Cargo.toml
index 57c93ba..53ef32f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ rand = { version = "0.8", default-features = false }
 digest = "0.9"
 base64 = { version = "0.13", default-features = false }
 hmac-drbg = { version = "0.3", optional = true }
-sha2 = { version = "0.9", optional = true, default-features = false }
+sha2 = { version = "0.10", optional = true, default-features = false }
 typenum = { version = "1.12", optional = true }
 serde = { version = "1.0.104", features = ["derive"], default-features = false }
 lazy_static = { version = "1.4.0", optional = true }