diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b037c30e8d..6d012a9df5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -92,7 +92,7 @@ jobs:
       - name: "Setup environment"
         uses: "networktocode/gh-action-setup-poetry-environment@v2"
       - name: "Get image version"
-        run: "echo IMAGE_VER=`poetry version -s`-py${{ matrix.python-version }} >> $GITHUB_ENV"
+        run: "echo IMAGE_VER=`poetry version -s`-py${{ matrix.python-version }} | tr '+' '.' >> $GITHUB_ENV"
       - name: "Set up Docker Buildx"
         id: "buildx"
         uses: "docker/setup-buildx-action@v1"
@@ -127,7 +127,7 @@ jobs:
       - name: "Setup environment"
         uses: "networktocode/gh-action-setup-poetry-environment@v2"
       - name: "Get image version"
-        run: "echo IMAGE_VER=`poetry version -s`-py${{ matrix.python-version }} >> $GITHUB_ENV"
+        run: "echo IMAGE_VER=`poetry version -s`-py${{ matrix.python-version }} | tr '+' '.'  >> $GITHUB_ENV"
       - name: "Set up Docker Buildx"
         id: "buildx"
         uses: "docker/setup-buildx-action@v1"
@@ -164,7 +164,7 @@ jobs:
       - name: "Setup environment"
         uses: "networktocode/gh-action-setup-poetry-environment@v2"
       - name: "Get image version"
-        run: "echo IMAGE_VER=`poetry version -s`-py${{ matrix.python-version }} >> $GITHUB_ENV"
+        run: "echo IMAGE_VER=`poetry version -s`-py${{ matrix.python-version }} | tr '+' '.'  >> $GITHUB_ENV"
       - name: "Set up Docker Buildx"
         id: "buildx"
         uses: "docker/setup-buildx-action@v1"