diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 0ec31e02..3f53ceb1 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -28,15 +28,15 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
-    - uses: actions/setup-java@v3
+      uses: actions/checkout@v4
+    - uses: actions/setup-java@v4
       with:
         distribution: 'temurin'
         java-version: 17
     - uses: gradle/actions/setup-gradle@v3
 
     - name: Use app/build and gradle configuration cache
-      uses: actions/cache/restore@v3
+      uses: actions/cache/restore@v4
       with:
         key: app_build-tests-without-emulator
         path: |
@@ -58,6 +58,6 @@ jobs:
       run: ./gradlew --no-daemon app:assembleOseDebug
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@v3
       with:
         category: "/language:${{matrix.language}}"
diff --git a/.github/workflows/test-dev.yml b/.github/workflows/test-dev.yml
index 4a1aeca2..5732ec1f 100644
--- a/.github/workflows/test-dev.yml
+++ b/.github/workflows/test-dev.yml
@@ -54,14 +54,14 @@ jobs:
     runs-on: ubuntu-latest-4-cores
     strategy:
       matrix:
-        api-level: [ 31 ]
+        api-level: [ 34 ]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4
         with:
           distribution: temurin
           java-version: 17
-      - uses: gradle/gradle-build-action@v2
+      - uses: gradle/actions/setup-gradle@v3
 
       - name: Create app/build and gradle configuration cache
         if: ${{ github.ref == 'refs/heads/dev-ose' }}
diff --git a/build.gradle b/build.gradle
index 45c6abae..8c555afb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,10 +19,10 @@ buildscript {
         commonsLang: '3.14.0',
         commonsText: '1.11.0',
         // own libraries
-        cert4android: '2bb3898',
-        dav4jvm: '93dddcd',
-        ical4android: '66dc34c',
-        vcard4android: '890ec70'
+        cert4android: 'f0964cb',
+        dav4jvm: '20f4a12',
+        ical4android: '821ab3f',
+        vcard4android: 'fcabcf2'
     ]
 
     repositories {