diff --git a/lambdabot-reference-plugins.cabal b/lambdabot-reference-plugins.cabal
--- a/lambdabot-reference-plugins.cabal
+++ b/lambdabot-reference-plugins.cabal
@@ -1,5 +1,5 @@
 name:                   lambdabot-reference-plugins
-version:                5.1.0.1
+version:                5.1.0.4
 
 license:                GPL
 license-file:           LICENSE
@@ -34,7 +34,7 @@
 
 build-type:             Simple
 cabal-version:          >= 1.8
-tested-with:            GHC == 7.8.4, GHC == 7.10.3
+tested-with:            GHC == 7.10.3, GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4, GHC == 8.6.1
 
 source-repository head
   type:                 git
diff --git a/src/Lambdabot/Plugin/Reference/Url.hs b/src/Lambdabot/Plugin/Reference/Url.hs
--- a/src/Lambdabot/Plugin/Reference/Url.hs
+++ b/src/Lambdabot/Plugin/Reference/Url.hs
@@ -119,7 +119,7 @@
 ignoredUrlSuffixes :: [String]
 ignoredUrlSuffixes = [".", ",", ";", ")", "\"", "\1", "\n"]
 
--- | Searches a string for an embeddded URL and returns it.
+-- | Searches a string for an embedded URL and returns it.
 containsUrl :: String -> Maybe String
 containsUrl text = do
     mr <- matchM begreg text