diff --git a/.github/workflows/codspeed.yaml b/.github/workflows/codspeed.yaml
index 773d5eaee..de4292a04 100644
--- a/.github/workflows/codspeed.yaml
+++ b/.github/workflows/codspeed.yaml
@@ -44,7 +44,6 @@ jobs:
         working-directory: bench
         run: |
           npm install ../effection.tgz --legacy-peer-deps
-          npm install --legacy-peer-deps
 
       - name: run benchmarks under CodSpeed (performance)
         uses: CodSpeedHQ/action@v4
diff --git a/bench/package.json b/bench/package.json
index 6d1aa890e..743c16dc2 100644
--- a/bench/package.json
+++ b/bench/package.json
@@ -5,8 +5,8 @@
     "@codspeed/tinybench-plugin": "^5.5.0",
     "@effectionx/inline": "https://pkg.pr.new/thefrontside/effectionx/@effectionx/inline@117",
     "co": "4.6.0",
-    "effect": "3.14.0",
-    "effect-v4": "npm:effect@4.0.0-beta.64",
+    "effect": "3.22.4",
+    "effect-v4": "npm:effect@4.1.1",
     "effection": "file:../effection.tgz",
     "rxjs": "7.8.1",
     "tinybench": "^4"