diff --git a/.github/workflows/deno.yml b/.github/workflows/deno.yml
index f335217..af3f319 100644
--- a/.github/workflows/deno.yml
+++ b/.github/workflows/deno.yml
@@ -9,6 +9,22 @@ on:
       - main
 permissions: read-all
 jobs:
+  wasm-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@0d381219ddf674d61a7572ddd19d7941e271515c # v2.9.0
+        with:
+          egress-policy: audit
+          disable-telemetry: true
+      - name: Clone repository
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      - name: Install Deno
+        uses: denoland/setup-deno@ba9dcf3bc3696623d1add6a2f5181ee1b5143de5 # v1.3.0
+        with:
+          deno-version: v1.x
+      - name: Check Wasm up-to-date
+        run: deno task wasmbuild --check
   deno-check:
     runs-on: ubuntu-latest
     steps: