diff --git a/src/package.json b/src/package.json
index ca86258f5..3bb76947e 100644
--- a/src/package.json
+++ b/src/package.json
@@ -16,7 +16,7 @@
                       "request"                 : "2.55.0",
                       "etherpad-require-kernel" : "1.0.9",
                       "resolve"                 : "1.1.7",
-                      "socket.io"               : "1.6.0",
+                      "socket.io"               : "1.7.3",
                       "ueberdb2"                : "0.3.0",
                       "express"                 : "4.13.4",
                       "express-session"         : "1.13.0",