diff --git a/.github/workflows/container-image.yml b/.github/workflows/container-image.yml
index 178d506..992b1a0 100644
--- a/.github/workflows/container-image.yml
+++ b/.github/workflows/container-image.yml
@@ -45,14 +45,17 @@ jobs:
         if: ${{ startsWith(github.ref, 'refs/heads/main') }}
         run: |
           echo TAG_NAME=latest >> $GITHUB_ENV
+          echo IMG_REPOSITORY_NAME=$( echo ${{ github.repository_owner }} | awk '{print tolower($0)}' ) >> $GITHUB_ENV
       - name: Retrieve tag name (feat branch)
         if: ${{ startsWith(github.ref, 'refs/heads/feat') }}
         run: |
           echo "TAG_NAME=latest-$(echo ${GITHUB_REF#refs/heads/})" >> $GITHUB_ENV
+          echo IMG_REPOSITORY_NAME=$( echo ${{ github.repository_owner }} | awk '{print tolower($0)}' ) >> $GITHUB_ENV
       - name: Retrieve tag name (tag)
         if: ${{ startsWith(github.ref, 'refs/tags/') }}
         run: |
           echo TAG_NAME=$(echo $GITHUB_REF | sed -e "s|refs/tags/||") >> $GITHUB_ENV
+          echo IMG_REPOSITORY_NAME=$( echo ${{ github.repository_owner }} | awk '{print tolower($0)}' ) >> $GITHUB_ENV
       - name: Build and push container image
         if: ${{ inputs.push-image }}
         id: build-image
@@ -63,10 +66,10 @@ jobs:
           platforms: linux/amd64, linux/arm64
           push: true
           tags: |
-            ghcr.io/${{github.repository_owner}}/kwasm-operator:${{ env.TAG_NAME }}
+            ghcr.io/${{ env.IMG_REPOSITORY_NAME }}/kwasm-operator:${{ env.TAG_NAME }}
       - id: setoutput
         name: Set output parameters
         run: |
-          echo "repository=ghcr.io/${{github.repository_owner}}/kwasm-operator" >> $GITHUB_OUTPUT
+          echo "repository=ghcr.io/${{ env.IMG_REPOSITORY_NAME }}/kwasm-operator" >> $GITHUB_OUTPUT
           echo "tag=${{ env.TAG_NAME }}" >> $GITHUB_OUTPUT
           echo "digest=${{ steps.build-image.outputs.digest }}" >> $GITHUB_OUTPUT
diff --git a/.github/workflows/sbom.yml b/.github/workflows/sbom.yml
index c0f0a35..bcd48d0 100644
--- a/.github/workflows/sbom.yml
+++ b/.github/workflows/sbom.yml
@@ -40,9 +40,11 @@ jobs:
         shell: bash
         run: |
           set -e
+          IMG_REPOSITORY_NAME=$( echo ${{ github.repository_owner }} | awk '{print tolower($0)}' )
+          echo IMG_REPOSITORY_NAME=${IMG_REPOSITORY_NAME} >> $GITHUB_ENV
           DIGEST=$(crane digest \
             --platform "linux/${{ matrix.arch }}" \
-            ghcr.io/${{ github.repository_owner }}/kwasm-operator@${{ inputs.image-digest }})
+            ghcr.io/${IMG_REPOSITORY_NAME}/kwasm-operator@${{ inputs.image-digest }})
           echo "PLATFORM_DIGEST=${DIGEST}" >> "$GITHUB_ENV"
 
       - name: Create SBOM file
@@ -51,7 +53,7 @@ jobs:
           syft \
             -o spdx-json \
             --file kwasm-operator-sbom-${{ matrix.arch }}.spdx \
-            ghcr.io/${{ github.repository_owner }}/kwasm-operator@${{ env.PLATFORM_DIGEST }}
+            ghcr.io/${{ env.IMG_REPOSITORY_NAME }}/kwasm-operator@${{ env.PLATFORM_DIGEST }}
 
       - name: Sign SBOM file
         run: |
@@ -65,7 +67,7 @@ jobs:
         run: |
           cosign attach \
             sbom --sbom kwasm-operator-sbom-${{ matrix.arch }}.spdx \
-            ghcr.io/${{ github.repository_owner }}/kwasm-operator@${{ env.PLATFORM_DIGEST }}
+            ghcr.io/${{ env.IMG_REPOSITORY_NAME }}/kwasm-operator@${{ env.PLATFORM_DIGEST }}
 
       - name: Sign SBOM file pushed to OCI registry
         shell: bash
@@ -74,7 +76,7 @@ jobs:
           SBOM_TAG="$(echo ${{ env.PLATFORM_DIGEST }} | sed -e 's/:/-/g').sbom"
 
           cosign sign --yes \
-            ghcr.io/${{github.repository_owner}}/kwasm-operator:${SBOM_TAG}
+            ghcr.io/${{ env.IMG_REPOSITORY_NAME }}/kwasm-operator:${SBOM_TAG}
 
       - name: Upload SBOMs as artifacts
         uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
diff --git a/.github/workflows/sign-image.yml b/.github/workflows/sign-image.yml
index e010dcf..bf9d9ca 100644
--- a/.github/workflows/sign-image.yml
+++ b/.github/workflows/sign-image.yml
@@ -25,8 +25,9 @@ jobs:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
-
+  
       - name: Sign container image
         run: |
+          IMG_REPOSITORY_NAME=$( echo ${{ github.repository_owner }} | awk '{print tolower($0)}' )
           cosign sign --yes \
-            ghcr.io/${{github.repository_owner}}/kwasm-operator@${{ inputs.image-digest }}
+            ghcr.io/${IMG_REPOSITORY_NAME}/kwasm-operator@${{ inputs.image-digest }}