diff --git a/src/technologies/e.json b/src/technologies/e.json
index 9b4179391..b74281228 100644
--- a/src/technologies/e.json
+++ b/src/technologies/e.json
@@ -1127,7 +1127,7 @@
     "cpe": "cpe:/a:expressjs:express",
     "description": "Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.",
     "headers": {
-      "X-Powered-By": "^Express$"
+      "X-Powered-By": "^Express(?:$|,)"
     },
     "icon": "Express.png",
     "implies": "Node.js",
diff --git a/src/technologies/p.json b/src/technologies/p.json
index 93da73f28..d87e833a6 100644
--- a/src/technologies/p.json
+++ b/src/technologies/p.json
@@ -1073,7 +1073,7 @@
     "description": "Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js.",
     "headers": {
       "Server": "Phusion Passenger ([\\d.]+)\\;version:\\1",
-      "X-Powered-By": "Phusion Passenger ?([\\d.]+)?\\;version:\\1"
+      "X-Powered-By": "Phusion Passenger(?:\\(R\\))? ?([\\d.]+)?\\;version:\\1"
     },
     "icon": "Phusion Passenger.png",
     "website": "https://phusionpassenger.com"