diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index deb67d2..6a1c455 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -31,15 +31,26 @@ jobs:
       contents: read
       packages: write
       security-events: write
-    
+
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
 
+    - name: Determine build platforms
+      id: platforms
+      run: |
+        # For PRs, build only amd64 to avoid QEMU emulation issues with Sharp
+        # For main/develop/tags, build multi-arch
+        if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+          echo "platforms=linux/amd64" >> $GITHUB_OUTPUT
+        else
+          echo "platforms=linux/amd64,linux/arm64" >> $GITHUB_OUTPUT
+        fi
+
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
       with:
-        platforms: linux/amd64,linux/arm64
+        platforms: ${{ steps.platforms.outputs.platforms }}
 
     - name: Log in to Container Registry
       if: github.event_name != 'pull_request' || github.event.inputs.push == 'true'
@@ -79,7 +90,7 @@ jobs:
         push: ${{ (github.event_name != 'pull_request' || github.event.inputs.push == 'true') && steps.login-ghcr.outcome == 'success' }}
         tags: ${{ steps.meta-backend.outputs.tags }}
         labels: ${{ steps.meta-backend.outputs.labels }}
-        platforms: linux/amd64,linux/arm64
+        platforms: ${{ steps.platforms.outputs.platforms }}
         cache-from: type=gha,scope=backend
         cache-to: type=gha,mode=max,scope=backend
         build-args: |
@@ -111,15 +122,26 @@ jobs:
       contents: read
       packages: write
       security-events: write
-    
+
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
 
+    - name: Determine build platforms
+      id: platforms
+      run: |
+        # For PRs, build only amd64 to avoid QEMU emulation issues
+        # For main/develop/tags, build multi-arch
+        if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+          echo "platforms=linux/amd64" >> $GITHUB_OUTPUT
+        else
+          echo "platforms=linux/amd64,linux/arm64" >> $GITHUB_OUTPUT
+        fi
+
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
       with:
-        platforms: linux/amd64,linux/arm64
+        platforms: ${{ steps.platforms.outputs.platforms }}
 
     - name: Log in to Container Registry
       if: github.event_name != 'pull_request' || github.event.inputs.push == 'true'
@@ -159,7 +181,7 @@ jobs:
         push: ${{ (github.event_name != 'pull_request' || github.event.inputs.push == 'true') && steps.login-ghcr.outcome == 'success' }}
         tags: ${{ steps.meta-frontend.outputs.tags }}
         labels: ${{ steps.meta-frontend.outputs.labels }}
-        platforms: linux/amd64,linux/arm64
+        platforms: ${{ steps.platforms.outputs.platforms }}
         cache-from: type=gha,scope=frontend
         cache-to: type=gha,mode=max,scope=frontend
         build-args: |