diff --git a/act/runner/runner_test.go b/act/runner/runner_test.go
index 2b9c461e..796038b8 100644
--- a/act/runner/runner_test.go
+++ b/act/runner/runner_test.go
@@ -407,6 +407,7 @@ func TestRunner_DockerActionForcePullForceRebuild(t *testing.T) {
 }
 
 func TestRunner_RunDifferentArchitecture(t *testing.T) {
+	t.Skip("Flaky see https://code.forgejo.org/forgejo/runner/issues/763")
 	if testing.Short() {
 		t.Skip("skipping integration test")
 	}
diff --git a/act/runner/testdata/actions/action1/Dockerfile b/act/runner/testdata/actions/action1/Dockerfile
index 311a4a0b..0eb4029d 100644
--- a/act/runner/testdata/actions/action1/Dockerfile
+++ b/act/runner/testdata/actions/action1/Dockerfile
@@ -1 +1 @@
-FROM ubuntu:18.04
\ No newline at end of file
+FROM code.forgejo.org/oci/node:22
diff --git a/act/runner/testdata/actions/composite-fail-with-output/action.yml b/act/runner/testdata/actions/composite-fail-with-output/action.yml
index 896022aa..bd33f3c0 100644
--- a/act/runner/testdata/actions/composite-fail-with-output/action.yml
+++ b/act/runner/testdata/actions/composite-fail-with-output/action.yml
@@ -1,13 +1,13 @@
-outputs:
-  customoutput:
-    value: my-customoutput-${{ steps.random-color-generator.outputs.SELECTED_COLOR }}
-runs:
-  using: composite
-  steps:
-  - name: Set selected color
-    run: echo '::set-output name=SELECTED_COLOR::green'
-    id: random-color-generator
-    shell: bash
-  - name: fail
-    run: exit 1
-    shell: bash
\ No newline at end of file
+outputs:
+  customoutput:
+    value: my-customoutput-${{ steps.random-color-generator.outputs.SELECTED_COLOR }}
+runs:
+  using: composite
+  steps:
+  - name: Set selected color
+    run: echo '::set-output name=SELECTED_COLOR::green'
+    id: random-color-generator
+    shell: bash
+  - name: fail
+    run: exit 1
+    shell: bash
diff --git a/act/runner/testdata/actions/docker-local-noargs/Dockerfile b/act/runner/testdata/actions/docker-local-noargs/Dockerfile
index b53bb336..5c288613 100644
--- a/act/runner/testdata/actions/docker-local-noargs/Dockerfile
+++ b/act/runner/testdata/actions/docker-local-noargs/Dockerfile
@@ -1,5 +1,5 @@
 # Container image that runs your code
-FROM node:12-buster-slim
+FROM code.forgejo.org/oci/node:22
 
 # Copies your code file from your action repository to the filesystem path `/` of the container
 COPY entrypoint.sh /entrypoint.sh
diff --git a/act/runner/testdata/actions/docker-local/Dockerfile b/act/runner/testdata/actions/docker-local/Dockerfile
index 47bc119d..5c288613 100644
--- a/act/runner/testdata/actions/docker-local/Dockerfile
+++ b/act/runner/testdata/actions/docker-local/Dockerfile
@@ -1,5 +1,5 @@
 # Container image that runs your code
-FROM node:16-buster-slim
+FROM code.forgejo.org/oci/node:22
 
 # Copies your code file from your action repository to the filesystem path `/` of the container
 COPY entrypoint.sh /entrypoint.sh
diff --git a/act/runner/testdata/actions/docker-url/action.yml b/act/runner/testdata/actions/docker-url/action.yml
index dd8aea39..8b6be1b3 100644
--- a/act/runner/testdata/actions/docker-url/action.yml
+++ b/act/runner/testdata/actions/docker-url/action.yml
@@ -8,7 +8,7 @@ inputs:
     default: World
 runs:
   using: docker
-  image: docker://node:16-buster-slim
+  image: docker://code.forgejo.org/oci/node:22
   entrypoint: /bin/sh -c
   env:
     TEST: enabled
diff --git a/act/runner/testdata/basic/push.yml b/act/runner/testdata/basic/push.yml
index 02d82ef5..8cb1836f 100644
--- a/act/runner/testdata/basic/push.yml
+++ b/act/runner/testdata/basic/push.yml
@@ -11,7 +11,7 @@ jobs:
       - run: '[[ "$(pwd)" == "${GITHUB_WORKSPACE}" ]]'
       - run: echo ${{ env.TEST }} | grep value
       - run: env
-      - uses: docker://node:16-buster-slim
+      - uses: docker://code.forgejo.org/oci/node:22
         with:
           somekey: ${{ env.TEST }}
           args: echo ${INPUT_SOMEKEY} | grep somevalue
@@ -31,10 +31,10 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build]
     steps:
-      - uses: docker://node:16-buster-slim
+      - uses: docker://code.forgejo.org/oci/node:22
         with:
           args: env
-      - uses: docker://node:16-buster-slim
+      - uses: docker://code.forgejo.org/oci/node:22
         with:
           entrypoint: /bin/echo
           args: ${{github.event_name}}
diff --git a/act/runner/testdata/composite-fail-with-output/push.yml b/act/runner/testdata/composite-fail-with-output/push.yml
index b7392c8d..0cb4b271 100644
--- a/act/runner/testdata/composite-fail-with-output/push.yml
+++ b/act/runner/testdata/composite-fail-with-output/push.yml
@@ -1,14 +1,14 @@
-name: composite-fail-with-output
-on: push
-
-jobs:
-  test-for-output:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: https://data.forgejo.org/actions/checkout@v2
-    - uses: ./actions/composite-fail-with-output
-      id: composite-fail-with-output
-      continue-on-error: true
-    - run: |
-        echo ${{steps.composite-fail-with-output.outputs.customoutput}}
-        exit ${{steps.composite-fail-with-output.outputs.customoutput == 'my-customoutput-green' && '0' || '1'}}
\ No newline at end of file
+name: composite-fail-with-output
+on: push
+
+jobs:
+  test-for-output:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: https://data.forgejo.org/actions/checkout@v2
+    - uses: ./actions/composite-fail-with-output
+      id: composite-fail-with-output
+      continue-on-error: true
+    - run: |
+        echo ${{steps.composite-fail-with-output.outputs.customoutput}}
+        exit ${{steps.composite-fail-with-output.outputs.customoutput == 'my-customoutput-green' && '0' || '1'}}
diff --git a/act/runner/testdata/issue-104/main.yaml b/act/runner/testdata/issue-104/main.yaml
index 78fda669..8b158373 100644
--- a/act/runner/testdata/issue-104/main.yaml
+++ b/act/runner/testdata/issue-104/main.yaml
@@ -10,6 +10,6 @@ jobs:
     steps:
 
     - name: hello
-      uses: https://github.com/actions/hello-world-docker-action@v1
+      uses: https://code.forgejo.org/forgejo/hello-world-docker-action@v1
       with:
         who-to-greet: "World"
diff --git a/act/runner/testdata/job-container-non-root/push.yml b/act/runner/testdata/job-container-non-root/push.yml
index 1fe0e3be..f5dc3ec3 100644
--- a/act/runner/testdata/job-container-non-root/push.yml
+++ b/act/runner/testdata/job-container-non-root/push.yml
@@ -5,6 +5,6 @@ jobs:
   test:
     runs-on: ubuntu-latest
     container:
-      image: catthehacker/ubuntu:runner-latest # image with user 'runner:runner' built on tag 'act-latest'
+      image: code.forgejo.org/forgejo/runner:8
     steps:
       - run: echo PASS
diff --git a/act/runner/testdata/local-action-via-composite-dockerfile/action/action.yml b/act/runner/testdata/local-action-via-composite-dockerfile/action/action.yml
index 1101f253..0f92273b 100644
--- a/act/runner/testdata/local-action-via-composite-dockerfile/action/action.yml
+++ b/act/runner/testdata/local-action-via-composite-dockerfile/action/action.yml
@@ -32,7 +32,7 @@ runs:
     shell: bash
   - uses: ./localdockerimagetest_
   # Also test a remote docker action here
-  - uses: https://github.com/actions/hello-world-docker-action@v1
+  - uses: https://code.forgejo.org/forgejo/hello-world-docker-action@v1
     with:
       who-to-greet: 'Mona the Octocat'
   # Test if GITHUB_ACTION_PATH is set correctly after all steps
diff --git a/act/runner/testdata/remote-action-docker/push.yml b/act/runner/testdata/remote-action-docker/push.yml
index dc6e11d3..752ef035 100644
--- a/act/runner/testdata/remote-action-docker/push.yml
+++ b/act/runner/testdata/remote-action-docker/push.yml
@@ -5,6 +5,6 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: https://github.com/actions/hello-world-docker-action@v1
+    - uses: https://code.forgejo.org/forgejo/hello-world-docker-action@v1
       with:
         who-to-greet: 'Mona the Octocat'
diff --git a/act/runner/testdata/services-with-container/push.yml b/act/runner/testdata/services-with-container/push.yml
index deafc607..cd670d2e 100644
--- a/act/runner/testdata/services-with-container/push.yml
+++ b/act/runner/testdata/services-with-container/push.yml
@@ -8,9 +8,7 @@ jobs:
       image: code.forgejo.org/oci/node:22-bookworm
     services:
       nginx:
-        image: "nginx:latest"
-        ports:
-          - "8080:80"
+        image: "code.forgejo.org/oci/apache-git:1"
     steps:
       - run: apt-get -qq update && apt-get -yqq install --no-install-recommends curl
       - run: curl -v http://nginx:80
diff --git a/act/runner/testdata/services/push.yaml b/act/runner/testdata/services/push.yaml
index f6ca7bc4..03ac0855 100644
--- a/act/runner/testdata/services/push.yaml
+++ b/act/runner/testdata/services/push.yaml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     services:
       postgres:
-        image: postgres:12
+        image: code.forgejo.org/oci/bitnami/postgresql:16
         env:
           POSTGRES_USER: runner
           POSTGRES_PASSWORD: mysecretdbpass
diff --git a/act/runner/testdata/uses-docker-url/push.yml b/act/runner/testdata/uses-docker-url/push.yml
index 336134c5..547f84f3 100644
--- a/act/runner/testdata/uses-docker-url/push.yml
+++ b/act/runner/testdata/uses-docker-url/push.yml
@@ -5,19 +5,18 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: docker://node:16-buster-slim
+      - uses: docker://code.forgejo.org/oci/node:22
         with:
           somekey: somevalue
           args: echo ${INPUT_SOMEKEY} | grep somevalue
-      - uses: docker://node:16-buster-slim
+      - uses: docker://code.forgejo.org/oci/node:22
         with:
           args: -v
-      - uses: docker://node:16-buster-slim
+      - uses: docker://code.forgejo.org/oci/node:22
         with:
           entrypoint: /bin/sh
           args: -c -- uname -a
-      - uses: docker://node:16-buster-slim
+      - uses: docker://code.forgejo.org/oci/node:22
         with:
           entrypoint: /bin/sh
           args: -c 'uname -a'
-
diff --git a/act/runner/testdata/uses-github-full-sha/main.yml b/act/runner/testdata/uses-github-full-sha/main.yml
index 6ec7f4e4..5eb25398 100644
--- a/act/runner/testdata/uses-github-full-sha/main.yml
+++ b/act/runner/testdata/uses-github-full-sha/main.yml
@@ -4,4 +4,4 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: https://github.com/actions/hello-world-docker-action@b136eb8894c5cb1dd5807da824be97ccdf9b5423
+      - uses: https://code.forgejo.org/forgejo/hello-world-docker-action@4b60c28ca1d0868e9c6efc0d8274b32cba37717a
diff --git a/act/runner/testdata/uses-github-short-sha/main.yml b/act/runner/testdata/uses-github-short-sha/main.yml
index c30b6bf0..c7eca562 100644
--- a/act/runner/testdata/uses-github-short-sha/main.yml
+++ b/act/runner/testdata/uses-github-short-sha/main.yml
@@ -4,4 +4,4 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: https://github.com/actions/hello-world-docker-action@b136eb8
+      - uses: https://code.forgejo.org/forgejo/hello-world-docker-action@4b60c28