diff --git a/.github/workflows/update_primary_nginx.yml b/.github/workflows/update_primary_nginx.yml
index ef8e83a..9b73fd0 100644
--- a/.github/workflows/update_primary_nginx.yml
+++ b/.github/workflows/update_primary_nginx.yml
@@ -20,7 +20,7 @@ jobs:
       - name: Check environment variables
         run: env
 
-      # Precompute DEV_PORT_PREFIX, STAG_PORT_PREFIX, and PROD_PORT_PREFIX
+      # Compute DEV_PORT_PREFIX, STAG_PORT_PREFIX, and PROD_PORT_PREFIX
       - name: Compute port prefixes
         run: |
           DEV_PORT_PREFIX="${PORT_PREFIX}${GROUP_ID}${DEV_POSTFIX}"
@@ -30,19 +30,26 @@ jobs:
           echo "STAG_PORT_PREFIX=${STAG_PORT_PREFIX}" >> $GITHUB_ENV
           echo "PROD_PORT_PREFIX=${PROD_PORT_PREFIX}" >> $GITHUB_ENV
 
+      # Debug: Print computed port prefixes
+      - name: Debug port prefixes
+        run: |
+          echo "DEV_PORT_PREFIX: ${DEV_PORT_PREFIX}"
+          echo "STAG_PORT_PREFIX: ${STAG_PORT_PREFIX}"
+          echo "PROD_PORT_PREFIX: ${PROD_PORT_PREFIX}"
+
       # Use sed with a different delimiter (|) to avoid issues with forward slashes
       - name: Create temporary nginx config file
         run: |
-          sed -e "s|\$GROUP_ID|$GROUP_ID|g" \
+          sed -e "s|\${DEV_PORT_PREFIX}|${DEV_PORT_PREFIX}|g" \
+              -e "s|\${STAG_PORT_PREFIX}|${STAG_PORT_PREFIX}|g" \
+              -e "s|\${PROD_PORT_PREFIX}|${PROD_PORT_PREFIX}|g" \
+              -e "s|\$GROUP_ID|$GROUP_ID|g" \
               -e "s|\$DOMAIN|$DOMAIN|g" \
               -e "s|\$URL_PREFIX|$URL_PREFIX|g" \
               -e "s|\$PORT_PREFIX|$PORT_PREFIX|g" \
               -e "s|\$DEV_POSTFIX|$DEV_POSTFIX|g" \
               -e "s|\$STAG_POSTFIX|$STAG_POSTFIX|g" \
               -e "s|\$PROD_POSTFIX|$PROD_POSTFIX|g" \
-              -e "s|\$DEV_PORT_PREFIX|$DEV_PORT_PREFIX|g" \
-              -e "s|\$STAG_PORT_PREFIX|$STAG_PORT_PREFIX|g" \
-              -e "s|\$PROD_PORT_PREFIX|$PROD_PORT_PREFIX|g" \
               -e "s|\$BACKEND_POSTFIX|$BACKEND_POSTFIX|g" \
               -e "s|\$FRONTEND_POSTFIX|$FRONTEND_POSTFIX|g" \
               -e "s|\$GATEWAY_POSTFIX|$GATEWAY_POSTFIX|g" \