diff --git a/.github/workflows/ci-e2e.yml b/.github/workflows/ci-e2e.yml
index 02b9395297e7a..e70b3a434ea7e 100644
--- a/.github/workflows/ci-e2e.yml
+++ b/.github/workflows/ci-e2e.yml
@@ -119,11 +119,16 @@ jobs:
                   OBJECT_STORAGE_SECRET_ACCESS_KEY=object_storage_root_password
                   EOT
 
+            - name: Lowercase GITHUB_REPOSITORY
+              id: lowercase
+              run: |
+                  echo "repository=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"
+
             - name: Get the PostHog container image of this PR
               id: meta
               uses: docker/metadata-action@v4
               with:
-                  images: ghcr.io/${{ github.repository }}/posthog
+                  images: ghcr.io/${{ steps.lowercase.outputs.repository }}/posthog
 
             - name: Start PostHog
               run: |
diff --git a/.github/workflows/codespaces.yml b/.github/workflows/codespaces.yml
index 470200aeb0030..cf6a8c9503ca4 100644
--- a/.github/workflows/codespaces.yml
+++ b/.github/workflows/codespaces.yml
@@ -31,6 +31,11 @@ jobs:
               with:
                   fetch-depth: 1
 
+            - name: Lowercase GITHUB_REPOSITORY
+              id: lowercase
+              run: |
+                  echo "repository=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"
+
             # As ghcr.io complains if the image has upper case letters, we use
             # this action to ensure we get a lower case version. See
             # https://github.com/docker/build-push-action/issues/237#issuecomment-848673650
@@ -39,7 +44,7 @@ jobs:
               id: meta
               uses: docker/metadata-action@v4
               with:
-                  images: ghcr.io/${{ github.repository }}/codespaces
+                  images: ghcr.io/${{ steps.lowercase.outputs.repository }}/codespaces
                   tags: |
                       type=ref,event=branch
                       type=raw,value=master
@@ -51,7 +56,7 @@ jobs:
               id: meta-for-cache
               uses: docker/metadata-action@v4
               with:
-                  images: ghcr.io/${{ github.repository }}/codespaces
+                  images: ghcr.io/${{ steps.lowercase.outputs.repository }}/codespaces
                   tags: |
                       type=raw,value=master
 
diff --git a/.github/workflows/container-images-ci.yml b/.github/workflows/container-images-ci.yml
index 9ed79f29c34e7..d0f3b302f3b70 100644
--- a/.github/workflows/container-images-ci.yml
+++ b/.github/workflows/container-images-ci.yml
@@ -34,11 +34,16 @@ jobs:
             - name: Checkout code
               uses: actions/checkout@v3
 
+            - name: Lowercase GITHUB_REPOSITORY
+              id: lowercase
+              run: |
+                  echo "repository=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"
+
             - name: Docker meta
               id: meta
               uses: docker/metadata-action@v4
               with:
-                  images: ghcr.io/${{ github.repository }}/posthog
+                  images: ghcr.io/${{ steps.lowercase.outputs.repository }}/posthog
                   tags: |
                       type=schedule
                       type=ref,event=branch
@@ -109,6 +114,11 @@ jobs:
                   username: ${{ github.repository_owner }}
                   password: ${{ secrets.GITHUB_TOKEN }}
 
+            - name: Lowercase GITHUB_REPOSITORY
+              id: lowercase
+              run: |
+                  echo "repository=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"
+
             - name: Build container images
               id: build
               uses: depot/build-push-action@v1
@@ -124,7 +134,7 @@ jobs:
                   # Use the non-cloud image as base image and extend it with
                   # the posthog-cloud code we've checked out.
                   build-args: |
-                      BASE_IMAGE=ghcr.io/${{ github.repository }}/posthog:${{ needs.posthog_build.outputs.container_image_version }}
+                      BASE_IMAGE=ghcr.io/${{ steps.lowercase.outputs.repository }}/posthog:${{ needs.posthog_build.outputs.container_image_version }}
 
     deploy_preview:
         uses: ./.github/workflows/pr-deploy.yml
diff --git a/.github/workflows/customer-data-pipeline.yml b/.github/workflows/customer-data-pipeline.yml
index 88ad308bc0c37..6a179053a3030 100644
--- a/.github/workflows/customer-data-pipeline.yml
+++ b/.github/workflows/customer-data-pipeline.yml
@@ -35,10 +35,15 @@ jobs:
                   username: ${{ github.actor }}
                   password: ${{ secrets.GITHUB_TOKEN }}
 
+            - name: Lowercase GITHUB_REPOSITORY
+              id: lowercase
+              run: |
+                  echo "repository=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"
+
             - uses: docker/metadata-action@v4
               id: meta
               with:
-                  images: ghcr.io/${{ github.repository }}/cdp
+                  images: ghcr.io/${{ steps.lowercase.outputs.repository }}/cdp
 
             # Make the image tags used for docker cache. We use this rather than
             # ${{ github.repository }} directly because the repository
@@ -47,7 +52,7 @@ jobs:
             - uses: docker/metadata-action@v4
               id: meta-cache
               with:
-                  images: ghcr.io/${{ github.repository }}/cdp
+                  images: ghcr.io/${{ steps.lowercase.outputs.repository }}/cdp
                   tags: |
                       type=raw,value=cache
 
@@ -128,12 +133,17 @@ jobs:
                   # Run the functional tests.
                   pnpm jest
 
+            - name: Lowercase GITHUB_REPOSITORY
+              id: lowercase
+              run: |
+                  echo "repository=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"
+
             - name: Generate docker latest tag
               if: github.ref == 'refs/heads/master'
               uses: docker/metadata-action@v4
               id: meta
               with:
-                  images: ghcr.io/${{ github.repository }}/cdp
+                  images: ghcr.io/${{ steps.lowercase.outputs.repository }}/cdp
                   tags: |
                       type=raw,value=latest