diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
index d2a335bda..f3f022ad9 100644
--- a/fuzz/Cargo.lock
+++ b/fuzz/Cargo.lock
@@ -431,9 +431,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.12.0"
+version = "1.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
+checksum = "ac8b1a9b2518dc799a2271eff1688707eb315f0d4697aa6b0871369ca4c4da55"
 
 [[package]]
 name = "option_parser"