diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+- 0.5.10.2
+    * Bump `mtl` dependency to 2.2
+
 - 0.5.10.1
     * Bump `aeson` dependency to 0.8
 
diff --git a/stylish-haskell.cabal b/stylish-haskell.cabal
--- a/stylish-haskell.cabal
+++ b/stylish-haskell.cabal
@@ -1,5 +1,5 @@
 Name:          stylish-haskell
-Version:       0.5.10.1
+Version:       0.5.10.2
 Synopsis:      Haskell code prettifier
 Homepage:      https://github.com/jaspervdj/stylish-haskell
 License:       BSD3
@@ -53,7 +53,7 @@
     directory        >= 1.1  && < 1.3,
     filepath         >= 1.1  && < 1.4,
     haskell-src-exts >= 1.14 && < 1.16,
-    mtl              >= 2.0  && < 2.2,
+    mtl              >= 2.0  && < 2.3,
     syb              >= 0.3  && < 0.5,
     yaml             >= 0.7  && < 0.9
 
@@ -74,7 +74,7 @@
     directory        >= 1.1  && < 1.3,
     filepath         >= 1.1  && < 1.4,
     haskell-src-exts >= 1.14 && < 1.16,
-    mtl              >= 2.0  && < 2.2,
+    mtl              >= 2.0  && < 2.3,
     syb              >= 0.3  && < 0.5,
     yaml             >= 0.7  && < 0.9
 
@@ -107,7 +107,7 @@
     directory        >= 1.1  && < 1.3,
     filepath         >= 1.1  && < 1.4,
     haskell-src-exts >= 1.14 && < 1.16,
-    mtl              >= 2.0  && < 2.2,
+    mtl              >= 2.0  && < 2.3,
     syb              >= 0.3  && < 0.5,
     yaml             >= 0.7  && < 0.9