diff --git a/.changeset/common-dryers-lay.md b/.changeset/common-dryers-lay.md
new file mode 100644
index 00000000000..5c1bd7392e2
--- /dev/null
+++ b/.changeset/common-dryers-lay.md
@@ -0,0 +1,5 @@
+---
+'@sap-ux/backend-proxy-middleware': patch
+---
+
+Add missing 'express' dependency
diff --git a/packages/backend-proxy-middleware/package.json b/packages/backend-proxy-middleware/package.json
index f2dece84eda..2c9408d04b4 100644
--- a/packages/backend-proxy-middleware/package.json
+++ b/packages/backend-proxy-middleware/package.json
@@ -36,6 +36,7 @@
         "@sap-ux/store": "workspace:*",
         "chalk": "4.1.2",
         "dotenv": "16.3.1",
+        "express": "4.21.2",
         "http-proxy-middleware": "3.0.5",
         "https-proxy-agent": "5.0.1",
         "i18next": "25.3.0",
@@ -43,17 +44,16 @@
         "proxy-from-env": "1.1.0"
     },
     "devDependencies": {
+        "@types/connect": "^3.4.38",
         "@types/express": "4.17.21",
         "@types/http-proxy": "^1.17.5",
         "@types/prompts": "2.4.4",
         "@types/proxy-from-env": "1.0.1",
         "@types/supertest": "2.0.12",
-        "express": "4.21.2",
+        "connect": "^3.7.0",
         "nock": "13.4.0",
         "supertest": "7.1.4",
-        "yaml": "2.2.2",
-        "connect": "^3.7.0",
-        "@types/connect": "^3.4.38"
+        "yaml": "2.2.2"
     },
     "ui5": {
         "dependencies": []
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 86db7110475..3dfd6972c9f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -902,6 +902,9 @@ importers:
       dotenv:
         specifier: 16.3.1
         version: 16.3.1
+      express:
+        specifier: 4.21.2
+        version: 4.21.2
       http-proxy-middleware:
         specifier: 3.0.5
         version: 3.0.5
@@ -939,9 +942,6 @@ importers:
       connect:
         specifier: ^3.7.0
         version: 3.7.0
-      express:
-        specifier: 4.21.2
-        version: 4.21.2
       nock:
         specifier: 13.4.0
         version: 13.4.0
@@ -5931,7 +5931,7 @@ packages:
       '@babel/traverse': 7.28.0
       '@babel/types': 7.28.2
       convert-source-map: 2.0.0
-      debug: 4.4.0
+      debug: 4.4.3
       gensync: 1.0.0-beta.2
       json5: 2.2.3
       semver: 6.3.1
@@ -19334,7 +19334,7 @@ packages:
       body-parser: 2.2.0
       content-disposition: 1.0.0
       content-type: 1.0.5
-      cookie: 0.7.1
+      cookie: 0.7.2
       cookie-signature: 1.2.2
       debug: 4.4.3
       encodeurl: 2.0.0