diff --git a/.github/workflows/detect-new-ver.yml b/.github/workflows/detect-new-ver.yml
index 05892b0..2fc33c7 100644
--- a/.github/workflows/detect-new-ver.yml
+++ b/.github/workflows/detect-new-ver.yml
@@ -44,8 +44,8 @@ jobs:
     - name: Update files with new version
       if: steps.check-update.outputs.has_update == 'true'
       run: |
-        cat README.template | envsubst > README.update 
-        cat Dockerfile.template | envsubst > Dockerfile.update 
+        sed 's/###IB_GATEWAY_VER###/${{steps.check-update.outputs.ib-gateway-ver}}/g;s/###IBC_VER###/${{steps.check-update.outputs.ibc-ver}}/g' README.template > README.update
+        sed 's/###IBC_VER###/${{steps.check-update.outputs.ibc-ver}}/g;s/###IBC_ASSET_URL###/${{steps.check-update.outputs.ibc-asset-url}}/g' Dockerfile.template > Dockerfile.update
     - name: Create PR
       if: ${{ steps.check-update.outputs.has_update == 'true' }}
       env:
@@ -70,4 +70,4 @@ jobs:
         git push --set-upstream origin "$branch"
 
         gh pr create --base develop --fill
-      
\ No newline at end of file
+sed "s/###IB_GATEWAY_VER###/10.19.2l/g;s/###IBC_VER###/3.18.0/g" README.template > README.update
\ No newline at end of file
diff --git a/Dockerfile.template b/Dockerfile.template
index 2537c9a..76423cb 100644
--- a/Dockerfile.template
+++ b/Dockerfile.template
@@ -1,7 +1,7 @@
 FROM python:3.11-slim
 # IBC Version : https://github.com/IbcAlpha/IBC/releases
-ARG IBC_VER="3.18.0"
-ARG IBC_ASSET_URL="https://github.com/IbcAlpha/IBC/releases/download/$IBC_VER-Update.1/IBCLinux-$IBC_VER.zip"
+ARG IBC_VER="###IBC_VER###"
+ARG IBC_ASSET_URL="###IBC_ASSET_URL###"
 
 # install dependencies
 RUN  apt-get update \
diff --git a/README.template b/README.template
index 656ad9f..87d47d5 100644
--- a/README.template
+++ b/README.template
@@ -10,9 +10,9 @@ It's just pure `IB Gateway` and don't include any VNC service (for security reas
 
 This docker image just installed:
 
-- [IB Gateway](https://www.interactivebrokers.com/en/index.php?f=16457) (${IB_GATEWAY_VER})
+- [IB Gateway](https://www.interactivebrokers.com/en/index.php?f=16457) (###IB_GATEWAY_VER###)
 
-- [IBC](https://github.com/IbcAlpha/IBC) (${IBC_VER})
+- [IBC](https://github.com/IbcAlpha/IBC) (###IBC_VER###)
 
 ## Pull the Docker image from Docker Hub