diff --git a/.dockerignore b/.dockerignore
index d11cac7..27e01c1 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -2,7 +2,6 @@
 .vscode
 deploy
 node_modules
-.travis.yml*
 Dockerfile.*
 
 **/*.unit.ts
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c52b4e1..90cd99c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ permissions:
   contents: read
 
 env:
-  node: 18
+  node: 20
 jobs:
   unit:
     runs-on: ubuntu-latest
@@ -35,15 +35,6 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SONAR_TOKEN: ${{ secrets.SONARCLOUD_TOKEN }}
-        with:
-          args: >
-            -Dsonar.organization=schulcloud-verbund
-            -Dsonar.projectKey=hpi-schul-cloud_shd-client
-            -Dsonar.sources=.
-            -Dsonar.exclusions=src/serverApi/**/*.*
-            -Dsonar.coverage.exclusions=tests/**/*.*,**/*.unit.ts,**/*.unit.js
-            -Dsonar.cpd.exclusions=tests/**/*.*,**/*.unit.ts,**/*.unit.js,**/locales/*.ts
-            -Dsonar.javascript.lcov.reportPaths=./coverage/lcov.info
 
   lint:
     runs-on: ubuntu-latest
diff --git a/.nvmrc b/.nvmrc
index 3c03207..209e3ef 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-18
+20
diff --git a/.pullapprove.yml b/.pullapprove.yml
deleted file mode 100644
index da65480..0000000
--- a/.pullapprove.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-version: 3
-
-pullapprove_conditions:
-- condition: "'WIP' not in labels"
-  unmet_status: pending
-  explanation: "Work in progress"
-- condition: "'- [ ]' not in body"
-  unmet_status: failure
-  explanation: "Please finish all the required checklist tasks"
-
-
-notifications:
-- when: pull_request.opened
-  comment: |
-    Hey @{{ author }}, thanks for the PR! The review will start once
-    the tests, CI checks and PR requirements (see checklist in your PR) have passed.
-- when: pullapprove.approved
-  if: "author_association == 'CONTRIBUTOR'"
-  comment: "The review is completed. Thanks @{{ author }}, we'll take it from here."
diff --git a/Dockerfile b/Dockerfile
index e769f4d..d9c7285 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # build stage
-FROM docker.io/node:18-bullseye AS build-stage
+FROM docker.io/node:20-bullseye AS build-stage
 
 ## add libraries needed for installing canvas npm package
 RUN apt update && apt install -y g++ libcairo2-dev libpango1.0-dev libjpeg-dev libgif-dev librsvg2-dev;
diff --git a/package-lock.json b/package-lock.json
index 509a96b..be33661 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -47,7 +47,7 @@
         "fishery": "^2.2.2",
         "jest": "^27.5.1",
         "prettier": "^3.3.3",
-        "sass": "^1.77.8",
+        "sass": "^1.67.0",
         "sass-loader": "^13.3.3",
         "ts-jest": "^27.1.5",
         "typescript": "^4.9.5",
@@ -55,7 +55,7 @@
         "webpack-plugin-vuetify": "^2.0.1"
       },
       "engines": {
-        "node": "18",
+        "node": "20",
         "npm": ">=9"
       }
     },
@@ -16599,10 +16599,11 @@
       "dev": true
     },
     "node_modules/sass": {
-      "version": "1.77.8",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.77.8.tgz",
-      "integrity": "sha512-4UHg6prsrycW20fqLGPShtEvo/WyHRVRHwOP4DzkUrObWoWI05QBSfzU71TVB7PFaL104TwNaHpjlWXAZbQiNQ==",
+      "version": "1.67.0",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.67.0.tgz",
+      "integrity": "sha512-SVrO9ZeX/QQyEGtuZYCVxoeAL5vGlYjJ9p4i4HFuekWl8y/LtJ7tJc10Z+ck1c8xOuoBm2MYzcLfTAffD0pl/A==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "chokidar": ">=3.0.0 <4.0.0",
         "immutable": "^4.0.0",
diff --git a/package.json b/package.json
index b7a1796..04141d5 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "fishery": "^2.2.2",
     "jest": "^27.5.1",
     "prettier": "^3.3.3",
-    "sass": "^1.77.8",
+    "sass": "^1.67.0",
     "sass-loader": "^13.3.3",
     "ts-jest": "^27.1.5",
     "typescript": "^4.9.5",
@@ -64,7 +64,7 @@
     "webpack-plugin-vuetify": "^2.0.1"
   },
   "engines": {
-    "node": "18",
+    "node": "20",
     "npm": ">=9"
   }
 }
diff --git a/sonar-project.properties b/sonar-project.properties
new file mode 100644
index 0000000..dc2722e
--- /dev/null
+++ b/sonar-project.properties
@@ -0,0 +1,14 @@
+sonar.organization=schulcloud-verbund
+sonar.projectKey=hpi-schul-cloud_nuxt-client
+
+sonar.sources=.
+sonar.tests=.
+
+# Exclude test files, locales and generated code from source scope
+sonar.exclusions=tests/**/*,**/*.unit.ts,**/*.unit.js,src/serverApi/**/*,**/locales/**.ts
+
+# Include test files in test scope
+sonar.test.inclusions=tests/**/*,**/*.unit.ts,**/*.unit.js
+
+# Coverage report directory of jest
+sonar.javascript.lcov.reportPaths=./coverage/lcov.info
\ No newline at end of file