diff --git a/oasp4j-ide/presentations/overview/revealjs/package.json b/oasp4j-ide/presentations/overview/revealjs/package.json
index ea6045a71..3f3eadb64 100644
--- a/oasp4j-ide/presentations/overview/revealjs/package.json
+++ b/oasp4j-ide/presentations/overview/revealjs/package.json
@@ -12,7 +12,7 @@
 	},
 	"dependencies": {
 		"underscore" : "~1.3.3",
-		"express" : "~2.5.9",
+		"express" : "~4.17.1",
 		"socket.io" : "~0.9.6",
 		"mustache" : "~0.4.0"
 	},