diff --git a/build/frappe-nginx/Dockerfile b/build/frappe-nginx/Dockerfile
index d360f87f..191d72bf 100644
--- a/build/frappe-nginx/Dockerfile
+++ b/build/frappe-nginx/Dockerfile
@@ -25,8 +25,12 @@ RUN mkdir -p apps sites/assets/css  \
     && cd apps \
     && git clone --depth 1 https://github.com/frappe/frappe --branch $GIT_BRANCH
 
-COPY build/frappe-nginx/build.sh /build.sh
-RUN /build.sh
+RUN cd /home/frappe/frappe-bench/apps/frappe \
+    && yarn \
+    && yarn run production \
+    && rm -fr node_modules \
+    && yarn install --production=true
+
 RUN node --version \
     && npm --version \
     && yarn --version
diff --git a/build/frappe-nginx/build.sh b/build/frappe-nginx/build.sh
deleted file mode 100755
index f9b01dbb..00000000
--- a/build/frappe-nginx/build.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/bash
-
-function nodeCleanUp() {
-    rm -fr node_modules
-    yarn install --production=true
-}
-
-cd /home/frappe/frappe-bench/apps/frappe
-yarn
-yarn run production
-
-if [[ "$GIT_BRANCH" =~ ^(version-12|version-11)$ ]]; then
-    nodeCleanUp
-else
-    nodeCleanUp
-    # remove this when frappe framework moves this to dependencies from devDependencies
-    yarn add node-sass
-fi