diff --git a/plugins/openapi-router-common/package.json b/plugins/openapi-router-common/package.json
index 9607f39bfa..c1af958026 100644
--- a/plugins/openapi-router-common/package.json
+++ b/plugins/openapi-router-common/package.json
@@ -24,7 +24,9 @@
     "postpack": "backstage-cli package postpack"
   },
   "devDependencies": {
-    "@backstage/cli": "workspace:^"
+    "@backstage/cli": "workspace:^",
+    "@types/express": "^4.17.17",
+    "@types/express-serve-static-core": "^4.17.33"
   },
   "files": [
     "dist"
diff --git a/yarn.lock b/yarn.lock
index 8c689e4ae9..d31015c608 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7800,6 +7800,8 @@ __metadata:
   dependencies:
     "@backstage/backend-common": "workspace:^"
     "@backstage/cli": "workspace:^"
+    "@types/express": ^4.17.17
+    "@types/express-serve-static-core": ^4.17.33
     express: ^4.17.1
     express-promise-router: ^4.1.0
     json-schema-to-ts: ^2.6.2
@@ -15908,6 +15910,28 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/express-serve-static-core@npm:*, @types/express-serve-static-core@npm:^4.17.18, @types/express-serve-static-core@npm:^4.17.31, @types/express-serve-static-core@npm:^4.17.33, @types/express-serve-static-core@npm:^4.17.5":
+  version: 4.17.33
+  resolution: "@types/express-serve-static-core@npm:4.17.33"
+  dependencies:
+    "@types/node": "*"
+    "@types/qs": "*"
+    "@types/range-parser": "*"
+  checksum: dce580d16b85f207445af9d4053d66942b27d0c72e86153089fa00feee3e96ae336b7bedb31ed4eea9e553c99d6dd356ed6e0928f135375d9f862a1a8015adf2
+  languageName: node
+  linkType: hard
+
+"@types/express-serve-static-core@npm:*, @types/express-serve-static-core@npm:^4.17.30, @types/express-serve-static-core@npm:^4.17.31, @types/express-serve-static-core@npm:^4.17.5":
+  version: 4.17.33
+  resolution: "@types/express-serve-static-core@npm:4.17.33"
+  dependencies:
+    "@types/node": "*"
+    "@types/qs": "*"
+    "@types/range-parser": "*"
+  checksum: dce580d16b85f207445af9d4053d66942b27d0c72e86153089fa00feee3e96ae336b7bedb31ed4eea9e553c99d6dd356ed6e0928f135375d9f862a1a8015adf2
+  languageName: node
+  linkType: hard
+
 "@types/express-serve-static-core@npm:*, @types/express-serve-static-core@npm:^4.17.30, @types/express-serve-static-core@npm:^4.17.33, @types/express-serve-static-core@npm:^4.17.5":
   version: 4.17.33
   resolution: "@types/express-serve-static-core@npm:4.17.33"
@@ -15950,6 +15974,30 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/express@npm:4.17.14":
+  version: 4.17.14
+  resolution: "@types/express@npm:4.17.14"
+  dependencies:
+    "@types/body-parser": "*"
+    "@types/express-serve-static-core": ^4.17.18
+    "@types/qs": "*"
+    "@types/serve-static": "*"
+  checksum: 15c1af46d02de834e4a225eccaa9d85c0370fdbb3ed4e1bc2d323d24872309961542b993ae236335aeb3e278630224a6ea002078d39e651d78a3b0356b1eaa79
+  languageName: node
+  linkType: hard
+
+"@types/express@npm:^4.17.17":
+  version: 4.17.17
+  resolution: "@types/express@npm:4.17.17"
+  dependencies:
+    "@types/body-parser": "*"
+    "@types/express-serve-static-core": ^4.17.33
+    "@types/qs": "*"
+    "@types/serve-static": "*"
+  checksum: 0196dacc275ac3ce89d7364885cb08e7fb61f53ca101f65886dbf1daf9b7eb05c0943e2e4bbd01b0cc5e50f37e0eea7e4cbe97d0304094411ac73e1b7998f4da
+  languageName: node
+  linkType: hard
+
 "@types/fs-extra@npm:^9.0.1, @types/fs-extra@npm:^9.0.3, @types/fs-extra@npm:^9.0.5, @types/fs-extra@npm:^9.0.6":
   version: 9.0.13
   resolution: "@types/fs-extra@npm:9.0.13"