diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## Req 1.2.1
+
+* Fixed a typo in the type signature of `parseUrl`.
+
 ## Req 1.2.0
 
 * Added the `parseUrl` function.
diff --git a/Network/HTTP/Req.hs b/Network/HTTP/Req.hs
--- a/Network/HTTP/Req.hs
+++ b/Network/HTTP/Req.hs
@@ -889,11 +889,11 @@
 -- | A more general URI parsing function that can be used when scheme is not
 -- known beforehand.
 --
--- @since 1.2.0
+-- @since 1.2.1
 
 parseUrl
   :: ByteString
-  -> Maybe (Either (Url 'Http, Option scheme) (Url 'Https, Option scheme))
+  -> Maybe (Either (Url 'Http, Option scheme0) (Url 'Https, Option scheme1))
 parseUrl url = Left <$> parseUrlHttp url <|> Right <$> parseUrlHttps url
 
 -- | Get host\/collection of path pieces and possibly query parameters
diff --git a/req.cabal b/req.cabal
--- a/req.cabal
+++ b/req.cabal
@@ -1,5 +1,5 @@
 name:                 req
-version:              1.2.0
+version:              1.2.1
 cabal-version:        1.18
 tested-with:          GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3
 license:              BSD3