diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index c212bfb..dcae703 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -19,9 +19,6 @@ on:
 jobs:
   build-and-test:
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
       
     strategy:
       fail-fast: false
@@ -43,13 +40,6 @@ jobs:
       - name: Checkout Cymetric
         uses: actions/checkout@v4
 
-      - name: Log in to the Container registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -58,8 +48,7 @@ jobs:
         continue-on-error: true
         uses: docker/build-push-action@v5
         with:
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache,mode=max
+          cache-from: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
           file: docker/Dockerfile
           build-args: |
             pkg_mgr=${{ matrix.pkg_mgr }}
diff --git a/.github/workflows/publish_latest.yml b/.github/workflows/publish_latest.yml
index 5ca76b1..61c9f75 100644
--- a/.github/workflows/publish_latest.yml
+++ b/.github/workflows/publish_latest.yml
@@ -46,7 +46,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
-          username: ${{ github.repository_owner }}
+          username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
@@ -55,11 +55,11 @@ jobs:
       - name: Build and Test Cymetric
         uses: docker/build-push-action@v5
         with:
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache,mode=max
+          cache-from: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
+          cache-to: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache,mode=max
           file: docker/Dockerfile
           push: true
-          tags: ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:${{ env.tag }}
+          tags: ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:${{ env.tag }}
           build-args: |
             pkg_mgr=${{ matrix.pkg_mgr }}
             ubuntu_version=${{ matrix.ubuntu_versions }}
diff --git a/.github/workflows/publish_release.yml b/.github/workflows/publish_release.yml
index 7353f0e..7d35649 100644
--- a/.github/workflows/publish_release.yml
+++ b/.github/workflows/publish_release.yml
@@ -1,6 +1,9 @@
 name: Publish Stable Cymetric
 
 on:
+  pull_request:
+    paths:
+      - '.github/workflows/publish_release.yml'
   release:
     types: [released]
 
@@ -31,7 +34,7 @@ jobs:
           echo "stable_tag=ci-image-cache" >> "$GITHUB_ENV"
 
       - name: Tag as stable
-        if: ${{ github.repository_owner == 'cyclus' }}
+        if: ${{ github.repository_owner == 'cyclus' && github.event_name == 'release' }}
         run: |
           echo "version_tag=${{ github.event.release.tag_name }}" >> "$GITHUB_ENV"
           echo "stable_tag=stable" >> "$GITHUB_ENV"
@@ -40,7 +43,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
-          username: ${{ github.repository_owner }}
+          username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
@@ -52,13 +55,12 @@ jobs:
       - name: Build and Test Cymetric
         uses: docker/build-push-action@v5
         with:
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache,mode=max
+          cache-from: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
           file: docker/Dockerfile
           push: true
           tags: |
-            ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:${{ env.version_tag }}
-            ghcr.io/${{ github.repository_owner }}/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:${{ env.stable_tag }}
+            ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:${{ env.version_tag }}
+            ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:${{ env.stable_tag }}
           build-args: |
             pkg_mgr=${{ matrix.pkg_mgr }}
             ubuntu_version=${{ matrix.ubuntu_versions }}
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 67b8e2e..38b3bbb 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -4,7 +4,7 @@ cymetric Change Log
 
 .. current developments
 **Added:**
-* GitHub workflows for CI (#188, #190, #191, #193)
+* GitHub workflows for CI (#188, #190, #191, #193, #195)
 
 **Changed**
 * Converted test suite from nose to pytest (#188)
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 8149d21..720d047 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,6 +1,6 @@
 ARG pkg_mgr=apt
 ARG ubuntu_version=22.04
-ARG cycamore_tag=stable
+ARG cycamore_tag=latest
 
 FROM ghcr.io/cyclus/cycamore_${ubuntu_version}_${pkg_mgr}/cycamore:${cycamore_tag} as cymetric