diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 53cbad1c..72222211 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -3,25 +3,53 @@ on:
   workflow_call:
 
 jobs:
+
   black:
     uses: ./.github/workflows/make.yml
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10"]
     with:
       make: checkblack
+      python-version: ${{ matrix.python-version }}
+
   ruff:
     uses: ./.github/workflows/make.yml
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10"]
     with:
       make: checkruff
+      python-version: ${{ matrix.python-version }}
+
   mypy:
     uses: ./.github/workflows/make.yml
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10"]
     with:
       make: mypy
+      python-version: ${{ matrix.python-version }}
+
   pyright:
     uses: ./.github/workflows/make.yml
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10"]
     with:
       make: pyright
+      python-version: ${{ matrix.python-version }}
       npm: true
+
+
   prettier:
     uses: ./.github/workflows/make.yml
     with:
       make: checkprettier
       npm: true
+
+  bundle:
+    uses: ./.github/workflows/make.yml
+    with:
+      make: checkbundle
+      npm: true
diff --git a/.github/workflows/make.yml b/.github/workflows/make.yml
index 21dec850..4a71de52 100644
--- a/.github/workflows/make.yml
+++ b/.github/workflows/make.yml
@@ -11,21 +11,24 @@ on:
         description: "use npm install"
         default: false
         type: boolean
+      python-version:
+        description: "python version"
+        type: string
+        default: "3.10"
 
 jobs:
   make:
-    name: ${{ inputs.make }} (${{ matrix.python-version }})
+    name: ${{ inputs.make }} (${{ inputs.python-version }})
     strategy:
       matrix:
         os-version: ["ubuntu-latest"]
-        python-version: ["3.9", "3.10"]
         node-version: ["18.x"]
     runs-on: ${{ matrix.os-version }}
     steps:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/prepare
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: ${{ inputs.python-version }}
           node-version: ${{ matrix.node-version }}
           npm: ${{ inputs.npm }}
       - run: make ${{ inputs.make }}
diff --git a/.gitignore b/.gitignore
index 5b3ab425..b0e08c4a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,6 +35,8 @@ coverage.xml
 node_modules
 lnbits/static/bundle.js
 lnbits/static/bundle.css
+lnbits/static/bundle.min.js.old
+lnbits/static/bundle.min.css.old
 docker
 
 # Nix
diff --git a/Makefile b/Makefile
index 0bc34042..889ce3e7 100644
--- a/Makefile
+++ b/Makefile
@@ -100,6 +100,16 @@ bundle:
 	sed -i -e "s/CACHE_VERSION =.*/CACHE_VERSION = $$(awk '/CACHE_VERSION =/ { print 1+$$4 }' lnbits/static/js/service-worker.js)/" \
 		lnbits/static/js/service-worker.js
 
+checkbundle:
+	cp lnbits/static/bundle.min.js lnbits/static/bundle.min.js.old
+	cp lnbits/static/bundle.min.css lnbits/static/bundle.min.css.old
+	make bundle
+	diff -q lnbits/static/bundle.min.js lnbits/static/bundle.min.js.old || exit 1
+	diff -q lnbits/static/bundle.min.css lnbits/static/bundle.min.css.old || exit 1
+	@echo "Bundle is OK"
+	rm lnbits/static/bundle.min.js.old
+	rm lnbits/static/bundle.min.css.old
+
 install-pre-commit-hook:
 	@echo "Installing pre-commit hook to git"
 	@echo "Uninstall the hook with poetry run pre-commit uninstall"