diff --git a/testutil/contracts/counter/Cargo.lock b/testutil/contracts/counter/Cargo.lock
index 7f70be5afc..b74f82298f 100644
--- a/testutil/contracts/counter/Cargo.lock
+++ b/testutil/contracts/counter/Cargo.lock
@@ -657,9 +657,9 @@ dependencies = [
 
 [[package]]
 name = "serde-json-wasm"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16a62a1fad1e1828b24acac8f2b468971dade7b8c3c2e672bcadefefb1f8c137"
+checksum = "9e9213a07d53faa0b8dd81e767a54a8188a242fdb9be99ab75ec576a774bfdd7"
 dependencies = [
  "serde",
 ]