diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index b470678..266280d 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -11,7 +11,7 @@ cargo-fuzz = true
 
 [dependencies]
 libfuzzer-sys = "0.4"
-sha2 = "0.9"
+sha2 = "0.10"
 arbitrary = { version = "1", features = ["derive"] }
 
 [dependencies.pow_sha256]