diff --git a/Jenkinsfile b/Jenkinsfile
index a4b9ecafb0d385249636c787bf713dc632ae34cb..087c9be74b9b8542bf972adddc02f6a5ea6fe253 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -43,7 +43,7 @@ pipeline {
 
 						sh 'npm cache verify'
                         sh 'npm install'
-                        sh 'npm run build'
+                        sh 'NODE_ENV=production npm run build'
                         //sh 'npm run test'
                                                            
 	                    if (isMasterBranch()) {
diff --git a/client/docker/nginx.conf b/client/docker/nginx.conf
index f2e3522c1ac8084c3315cd0c97187da4fa34aa80..054e3ac1167496ae8fe8d24abb9bb875d3eb7e0d 100644
--- a/client/docker/nginx.conf
+++ b/client/docker/nginx.conf
@@ -7,6 +7,7 @@ http {
     add_header Strict-Transport-Security "max-age=31536000" always;
     add_header X-Frame-Options "SAMEORIGIN" always;
     add_header X-Content-Type-Options "nosniff" always;
+    add_header Content-Security-Policy "default-src 'self'; style-src 'self' 'unsafe-inline'; object-src 'none'; child-src 'self'; frame-ancestors 'none'; base-uri 'none'; upgrade-insecure-requests; require-trusted-types-for 'script'" always;
     add_header X-XSS-Protection "0" always;
     add_header Referrer-Policy "no-referrer" always;
 
diff --git a/client/package-lock.json b/client/package-lock.json
index 8b0465cfd1e55762d818ddc5e2ff1ddfa4ebca90..a65cf2950ddc666009c15741865399adbb3b0bd5 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "ozg-frontend-client",
-    "version": "0.3.1",
+    "version": "1.4.0-SNAPSHOT",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "ozg-frontend-client",
-            "version": "0.3.1",
+            "version": "1.4.0-SNAPSHOT",
             "dependencies": {
                 "axios": "^1.5.1",
                 "react": "^18.2.0",
diff --git a/client/webpack.config.js b/client/webpack.config.js
index 425e4d8557804bc54415939fbc5bd40adbdd6102..0a56aeed1cee57b4e7678b63e75fcfb3dc2cd72b 100644
--- a/client/webpack.config.js
+++ b/client/webpack.config.js
@@ -47,7 +47,7 @@ module.exports = {
     publicPath: "/"
   },
   mode: prod ? "production" : "development",
-  devtool: prod ? undefined : "eval-source-map",
+  devtool: prod ? "source-map" : "eval-source-map",
   module: {
     rules: [
       {