diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0aa2d77ca2..bc926cce7c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -107,38 +107,45 @@ jobs:
       uses: codecov/codecov-action@81cd2dc8148241f03f5839d295e000b8f761e378 # v3.1.0
       with:
         files: lcov.info
-  # Check if the bundle size was committed and is up-to-date
+  # Lint shell scripts
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Run shellcheck
+      uses: ludeeus/action-shellcheck@1.1.0
   bundle-size:
     runs-on: ubuntu-latest
     steps:
     - name: Checking out
-      uses: actions/checkout@v2
-      with:
-        ref: ${{ github.head_ref }}
-        fetch-depth: 0
+      uses: actions/checkout@v3
     - name: Install Rust toolchain
       uses: ./.github/actions/rust-cargo-run
       with:
         command: version
         github_token: ${{ secrets.GITHUB_TOKEN }}
         save_cache: true
-    - name: Update bundle size
+    - name: Show bundle delta summary
+      id: bundle-summary
       run: |
-        git config --local user.email "github-actions[bot]@users.noreply.github.com"
-        git config --local user.name "github-actions[bot]"
-        make bundle-size
-        git add bundle-size
-        git commit -m "[skip ci] update bundle-size" || true
-    - name: Push changes
-      uses: ad-m/github-push-action@master
+        echo 'bundle-summary<<EOF' >> $GITHUB_ENV
+        make bundle-size | tail -n3 >> $GITHUB_ENV
+        echo 'EOF' >> $GITHUB_ENV
+
+    - name: Find Comment
+      uses: peter-evans/find-comment@v2
+      id: fc
       with:
-        github_token: ${{ secrets.GITHUB_TOKEN }}
-        branch: ${{ github.head_ref }}
-  # Lint shell scripts
-  shellcheck:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-    - name: Run shellcheck
-      uses: ludeeus/action-shellcheck@1.1.0
+        issue-number: ${{ github.event.pull_request.number }}
+        comment-author: 'github-actions[bot]'
+        body-regex: "^### WASM bundle size$"
+    - name: Create or update comment
+      uses: peter-evans/create-or-update-comment@v2
+      with:
+        comment-id: ${{ steps.fc.outputs.comment-id }}
+        issue-number: ${{ github.event.pull_request.number }}
+        body: |
+          ### WASM bundle size
+          ${{ steps.env.bundle-summary }}
+        edit-mode: replace
diff --git a/.github/workflows/update-bundle-size.yml b/.github/workflows/update-bundle-size.yml
new file mode 100644
index 0000000000..cd94d5c971
--- /dev/null
+++ b/.github/workflows/update-bundle-size.yml
@@ -0,0 +1,35 @@
+name: Update WASM bundle size
+
+on:
+  push:
+    branches:
+      - master
+
+# Check if the bundle size was committed and is up-to-date
+jobs:
+  bundle-size:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checking out
+      uses: actions/checkout@v3
+      with:
+        ref: ${{ github.head_ref }}
+        fetch-depth: 0
+    - name: Install Rust toolchain
+      uses: ./.github/actions/rust-cargo-run
+      with:
+        command: version
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        save_cache: true
+    - name: Update bundle size
+      run: |
+        git config --local user.email "github-actions[bot]@users.noreply.github.com"
+        git config --local user.name "github-actions[bot]"
+        make bundle-size
+        git add bundle-size
+        git commit -m "[skip ci] update bundle-size" || true
+    - name: Push changes
+      uses: ad-m/github-push-action@master
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        branch: ${{ github.head_ref }}
diff --git a/bundle-size b/bundle-size
index 2cab2b059d..97f0dd0bcd 100644
--- a/bundle-size
+++ b/bundle-size
@@ -1 +1 @@
-6030520
+6033977