diff --git a/.github/workflows/package-development-workflow.yml b/.github/workflows/package-development-workflow.yml
index 3df12d5..b18fed0 100644
--- a/.github/workflows/package-development-workflow.yml
+++ b/.github/workflows/package-development-workflow.yml
@@ -30,7 +30,7 @@ jobs:
     name: Build and Test
     runs-on: ubuntu-24.04
     container:
-      image: ghcr.io/simatic-ax/ci-images/apax-ci-image:3.5.0
+      image: ghcr.io/simatic-ax/ci-images/apax-ci-image:4.2.0
       credentials:
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
@@ -42,19 +42,19 @@ jobs:
           ref: ${{ inputs.ref != '' && inputs.ref || github.ref }}
 
       - name: Login to required registries
-        uses: simatic-ax/actions/apax-login@v3
+        uses: simatic-ax/actions/apax-login@v4
         with:
           apax-token: ${{ secrets.APAX_TOKEN }}
           registries: |
             https://npm.pkg.github.com/,${{ secrets.GITHUB_TOKEN }}
 
       - name: Install dependencies
-        uses: simatic-ax/actions/apax-install@v3
+        uses: simatic-ax/actions/apax-install@v4
         with:
           immutable: true
 
       - name: Build source code
-        uses: simatic-ax/actions/apax-build@v3
+        uses: simatic-ax/actions/apax-build@v4
         with:
           apax-build-targets: |
             llvm
@@ -64,7 +64,7 @@ jobs:
             --log Debug
 
       - name: Test source code
-        uses: simatic-ax/actions/apax-test@v3
+        uses: simatic-ax/actions/apax-test@v4
         with:
           coverage: true
           loglevel: debug
diff --git a/.github/workflows/package-release-workflow.yml b/.github/workflows/package-release-workflow.yml
index 424f17e..6beccf6 100644
--- a/.github/workflows/package-release-workflow.yml
+++ b/.github/workflows/package-release-workflow.yml
@@ -28,7 +28,7 @@ jobs:
     needs: call-development
     runs-on: ubuntu-24.04
     container:
-      image: ghcr.io/simatic-ax/ci-images/apax-ci-image:3.5.0
+      image: ghcr.io/simatic-ax/ci-images/apax-ci-image:4.2.0
       credentials:
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
@@ -49,24 +49,25 @@ jobs:
           path: bin
 
       - name: Version package
-        uses: simatic-ax/actions/apax-version@v3
+        uses: simatic-ax/actions/apax-version@v4
         with:
           version: ${{ github.event.release.tag_name }}
 
       - name: Package source code
-        uses: simatic-ax/actions/apax-pack@v3
+        uses: simatic-ax/actions/apax-pack@v4
         with:
           key: ${{ secrets.APAX_SIGNKEY_V2 }}
+          key-version: "v2"
 
       - name: Login to required registries
-        uses: simatic-ax/actions/apax-login@v3
+        uses: simatic-ax/actions/apax-login@v4
         with:
           apax-token: ${{ secrets.APAX_TOKEN }}
           registries: |
             https://npm.pkg.github.com/,${{ secrets.GITHUB_TOKEN }}
 
       - name: Publish apax package
-        uses: simatic-ax/actions/apax-publish@v3
+        uses: simatic-ax/actions/apax-publish@v4
         with:
           registries: |
             https://npm.pkg.github.com
diff --git a/apax-lock.json b/apax-lock.json
index 97a5dee..c911e72 100644
--- a/apax-lock.json
+++ b/apax-lock.json
@@ -7,12 +7,12 @@
     "name": "@simatic-ax/conversion",
     "version": "0.0.0-placeholder",
     "dependencies": {
-      "@ax/system-strings": "^10.0.24",
-      "@ax/system-math": "^10.0.24"
+      "@ax/system-strings": "^10.2.7",
+      "@ax/system-math": "^10.2.7"
     },
     "devDependencies": {
       "@ax/sdk": "^2510.0.0",
-      "@simatic-ax/snippetscollection": "^1.0.0"
+      "@simatic-ax/snippetscollection": "^1.1.0"
     },
     "catalogs": {
       "@ax/simatic-ax": "^2510.0.0"
diff --git a/apax.yml b/apax.yml
index 97306d9..f610a94 100644
--- a/apax.yml
+++ b/apax.yml
@@ -22,12 +22,18 @@ targets:
 # Install Setting
 installStrategy: strict
 # Dependencies
+publicKeys:
+  "@simatic-ax":
+    "v1": "3792a7e926775425ccdd29ceed8c368c3008b5b33d7d5550b3cb1f58093e1dff"
+    "v2": "7af3e394eb2b285a3d99ab8e1f745cc6db75704b30a80393339c721a92ffffd9"
+catalogs:
+  "@ax/simatic-ax": ^2510.0.0
 devDependencies:
   "@ax/sdk": ^2510.0.0
-  "@simatic-ax/snippetscollection": ^1.0.0
+  "@simatic-ax/snippetscollection": ^1.1.0
 dependencies:
-  "@ax/system-strings": ^10.0.24
-  "@ax/system-math": ^10.0.24
+  "@ax/system-strings": ^10.2.7
+  "@ax/system-math": ^10.2.7
 # Files, which will be shipped with the library
 files:
   - 'README.md'
@@ -36,5 +42,4 @@ files:
   - 'snippets'
   - 'doc'
   - 'bin' # ship library with binaries
-catalogs:
-  "@ax/simatic-ax": ^2510.0.0
+