diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 05d2b38..c01b378 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,7 +9,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build on Node.js ${{ inputs.node-version }}
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index ababe23..1c1d2cc 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -19,7 +19,7 @@ jobs:
   release-package:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/download-artifact@v3
         with:
           name: ngx-kjua
diff --git a/setup-jest.ts b/setup-jest.ts
index a702c63..f74884c 100644
--- a/setup-jest.ts
+++ b/setup-jest.ts
@@ -1 +1,8 @@
 import "jest-preset-angular/setup-jest";
+import "./projects/ngx-kjua/src/lib/kjua/lib/qrcode"
+
+// We have to mock the whole thing as "qrcode-generator" needs to override the stringToBytes method
+// but typescript can't properly hande that
+jest.mock("./projects/ngx-kjua/src/lib/kjua/lib/qrcode", ()=>({
+  quiet_qrcode: jest.fn()
+}))
diff --git a/tsconfig.json b/tsconfig.json
index aeb72a4..d95764e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -24,10 +24,10 @@
     "experimentalDecorators": true,
     "moduleResolution": "node",
     "importHelpers": true,
-    "target": "es2020",
-    "module": "es2020",
+    "target": "es6",
+    "module": "es6",
     "lib": [
-      "es2020",
+      "es6",
       "dom"
     ]
   },