diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..a6e35b2
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,8 @@
+github.com/bwmarrin/discordgo v0.18.0 h1:XopVQXCIFy7Cr2eT7NcYcm4k0l2PYX+AP5RUbIWX2/8=
+github.com/bwmarrin/discordgo v0.18.0/go.mod h1:5NIvFv5Z7HddYuXbuQegZ684DleQaCFqChP2iuBivJ8=
+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/kiliankoe/openmensa v0.0.0-20160914233745-a68c3aca59c0 h1:nqLa9Sn5qo4CvsPxTyvWZ6XkmUowbszZPJdW0U+O2O4=
+github.com/kiliankoe/openmensa v0.0.0-20160914233745-a68c3aca59c0/go.mod h1:WAZWjpFB1pagPLV6awqMVlcG57PxYbAHPRsPpf60LHw=
+golang.org/x/crypto v0.0.0-20181025213731-e84da0312774 h1:a4tQYYYuK9QdeO/+kEvNYyuR21S+7ve5EANok6hABhI=
+golang.org/x/crypto v0.0.0-20181025213731-e84da0312774/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=