diff --git a/.github/main.workflow b/.github/main.workflow
deleted file mode 100644
index 20a0f33256..0000000000
--- a/.github/main.workflow
+++ /dev/null
@@ -1,32 +0,0 @@
-workflow "Build & Release Manifest" {
-  on = "push"
-  resolves = ["manifest-build-and-tag"]
-}
-
-action "manifest-build-and-tag" {
-  uses = "./tools/docker/github"
-  runs = ["python", "tools/ci/manifest_build.py"]
-  secrets = ["GITHUB_TOKEN"]
-}
-
-workflow "Build & Publish Documentation Website" {
-  on = "push"
-  resolves = ["website-build-and-publish"]
-}
-
-action "website-build-and-publish" {
-  uses = "./tools/docker/documentation"
-  runs = ["/bin/bash", "tools/ci/website_build.sh"]
-  secrets = ["DEPLOY_TOKEN"]
-}
-
-workflow "Synchronize the Pull Request Preview" {
-  on = "pull_request"
-  resolves = "update-pr-preview"
-}
-
-action "update-pr-preview" {
-  uses = "./tools/docker/github"
-  runs = ["python", "tools/ci/update_pr_preview.py", "https://api.github.com"]
-  secrets = ["GITHUB_TOKEN"]
-}
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
new file mode 100644
index 0000000000..0bedfe3d42
--- /dev/null
+++ b/.github/workflows/pull_request.yml
@@ -0,0 +1,14 @@
+on: pull_request
+name: Synchronize the Pull Request Preview
+jobs:
+  update-pr-preview:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: update-pr-preview
+      uses: ./tools/docker/github
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        entrypoint: python
+        args: tools/ci/update_pr_preview.py https://api.github.com
diff --git a/.github/workflows/push-build-publish-documentation-website.yml b/.github/workflows/push-build-publish-documentation-website.yml
new file mode 100644
index 0000000000..de226d173f
--- /dev/null
+++ b/.github/workflows/push-build-publish-documentation-website.yml
@@ -0,0 +1,14 @@
+on: push
+name: Build & Publish Documentation Website
+jobs:
+  website-build-and-publish:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: website-build-and-publish
+      uses: ./tools/docker/documentation
+      env:
+        DEPLOY_TOKEN: ${{ secrets.DEPLOY_TOKEN }}
+      with:
+        entrypoint: /bin/bash
+        args: tools/ci/website_build.sh
diff --git a/.github/workflows/push-build-release-manifest.yml b/.github/workflows/push-build-release-manifest.yml
new file mode 100644
index 0000000000..6c97a2f7b9
--- /dev/null
+++ b/.github/workflows/push-build-release-manifest.yml
@@ -0,0 +1,14 @@
+on: push
+name: Build & Release Manifest
+jobs:
+  manifest-build-and-tag:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: manifest-build-and-tag
+      uses: ./tools/docker/github
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        entrypoint: python
+        args: tools/ci/manifest_build.py