diff --git a/go.mod b/go.mod
index 384851c..ef2c6d8 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.13
 require (
 	github.com/ByteArena/box2d v1.0.2
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
-	github.com/gorilla/websocket v1.4.0
+	github.com/gorilla/websocket v1.4.1
 	github.com/llgcode/draw2d v0.0.0-20180825133448-f52c8a71aff0
 	github.com/lucasb-eyer/go-colorful v1.0.2
 	github.com/pmezard/go-difflib v1.0.0 // indirect
diff --git a/go.sum b/go.sum
index becb2e0..9556a7a 100644
--- a/go.sum
+++ b/go.sum
@@ -6,8 +6,8 @@ github.com/go-gl/gl v0.0.0-20180407155706-68e253793080/go.mod h1:482civXOzJJCPzJ
 github.com/go-gl/glfw v0.0.0-20180426074136-46a8d530c326/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
-github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
-github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/gorilla/websocket v1.4.1 h1:q7AeDBpnBk8AogcD4DSag/Ukw/KV+YhzLj2bP5HvKCM=
+github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/jung-kurt/gofpdf v1.0.0/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/llgcode/draw2d v0.0.0-20180825133448-f52c8a71aff0 h1:2vp6ESimuT8pCuZHThVyV0hlfa9oPL06HnGCL9pbUgc=
 github.com/llgcode/draw2d v0.0.0-20180825133448-f52c8a71aff0/go.mod h1:mVa0dA29Db2S4LVqDYLlsePDzRJLDfdhVZiI15uY0FA=