diff --git a/.github/workflows/perf.yml b/.github/workflows/perf.yml
index 46bb1434..a72493ce 100644
--- a/.github/workflows/perf.yml
+++ b/.github/workflows/perf.yml
@@ -14,7 +14,7 @@ jobs:
       DFX_VERSION: 0.14.4
       IC_REPL_VERSION: 0.4.1
       MOC_VERSION: 0.10.0
-      IC_WASM_VERSION: 0.4.0
+      IC_WASM_VERSION: 0.5.0
     steps:
       - uses: actions/checkout@v3
       - name: Checkout out gh-pages report
diff --git a/utils.mk b/utils.mk
index c67f3ba2..cb3e1efb 100644
--- a/utils.mk
+++ b/utils.mk
@@ -1,5 +1,6 @@
 define ic-wasm
-	echo "No Optimize!"
+	echo "Aggressive optimize with ic-wasm"; \
+	for f in $(1)/*/*.wasm; do ic-wasm -o $$f $$f optimize O4 --inline-functions-with-loops --always-inline-max-function-size 100 --keep-name-section; done
 endef
 
 define build_with_mops