diff --git a/go.mod b/go.mod
index 2febc2a9..347ed15f 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/cskr/pubsub v1.0.2
 	github.com/denisbrodbeck/machineid v1.0.1
 	github.com/ebfe/scard v0.0.0-20190212122703-c3d1b1916a95
-	github.com/gorilla/websocket v1.4.2
+	github.com/gorilla/websocket v1.5.3
 	github.com/kardianos/service v1.2.0
 
 	// `libp2p/zeroconf` is a fork of `grandcat/zeroconf`, which we previously used.
diff --git a/go.sum b/go.sum
index dabc2ce4..1407bb63 100644
--- a/go.sum
+++ b/go.sum
@@ -13,8 +13,8 @@ github.com/dividat/go-serial v1.6.4-usbmetadata h1:U8b1GaZ1roUtf1Jve6sg+yuHdLe7F
 github.com/dividat/go-serial v1.6.4-usbmetadata/go.mod h1:nofMJxTeNVny/m6+KaafC6vJGj3miwQZ6vW4BZUGJPI=
 github.com/ebfe/scard v0.0.0-20190212122703-c3d1b1916a95 h1:OM0MnUcXBysj7ZtXvThVWHMoahuKQ8FuwIdeSLcNdP4=
 github.com/ebfe/scard v0.0.0-20190212122703-c3d1b1916a95/go.mod h1:8hHvF8DlEq5kE3KWOsZQezdWq1OTOVxZArZMscS954E=
-github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
-github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
+github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/kardianos/service v1.2.0 h1:bGuZ/epo3vrt8IPC7mnKQolqFeYJb7Cs8Rk4PSOBB/g=
 github.com/kardianos/service v1.2.0/go.mod h1:CIMRFEJVL+0DS1a3Nx06NaMn4Dz63Ng6O7dl0qH0zVM=
 github.com/libp2p/zeroconf/v2 v2.2.0 h1:Cup06Jv6u81HLhIj1KasuNM/RHHrJ8T7wOTS4+Tv53Q=