diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -4,6 +4,10 @@
 
 ## master
 
+## 1.1.1
+
+Fix ModifyGuildRolePositions results in 400 Bad Request issue
+
 ## 1.1.0
 
 Upgrade req to 2.x major version.
diff --git a/discord-haskell.cabal b/discord-haskell.cabal
--- a/discord-haskell.cabal
+++ b/discord-haskell.cabal
@@ -1,7 +1,7 @@
 cabal-version:       2.0
 name:                discord-haskell
 -- library version is also noted at src/Discord/Rest/Prelude.hs
-version:             1.1.0
+version:             1.1.1
 description:         Functions and data types to write discord bots.
                      Official discord docs <https://discordapp.com/developers/docs/reference>.
                      .
diff --git a/src/Discord/Internal/Rest/Guild.hs b/src/Discord/Internal/Rest/Guild.hs
--- a/src/Discord/Internal/Rest/Guild.hs
+++ b/src/Discord/Internal/Rest/Guild.hs
@@ -418,7 +418,7 @@
 
   (ModifyGuildRolePositions guild patch) ->
       let body = map (\(role, pos) -> object ["id".=role, "position".=pos]) patch
-      in Post (guilds // guild /: "roles") (pure (R.ReqBodyJson body)) mempty
+      in Patch (guilds // guild /: "roles") (R.ReqBodyJson body) mempty
 
   (ModifyGuildRole guild role patch) ->
        Post (guilds // guild /: "roles" // role) (pure (R.ReqBodyJson patch)) mempty
diff --git a/src/Discord/Internal/Rest/Prelude.hs b/src/Discord/Internal/Rest/Prelude.hs
--- a/src/Discord/Internal/Rest/Prelude.hs
+++ b/src/Discord/Internal/Rest/Prelude.hs
@@ -25,7 +25,7 @@
   where
   -- | https://discordapp.com/developers/docs/reference#user-agent
   -- Second place where the library version is noted
-  agent = "DiscordBot (https://github.com/aquarial/discord-haskell, 1.1.0)"
+  agent = "DiscordBot (https://github.com/aquarial/discord-haskell, 1.1.1)"
 
 -- Append to an URL
 infixl 5 //