diff --git a/type-list.cabal b/type-list.cabal
--- a/type-list.cabal
+++ b/type-list.cabal
@@ -1,5 +1,5 @@
 name:                type-list
-version:             0.3.0.2
+version:             0.3.0.3
 synopsis:            Operations on type-level lists and tuples.
 description:         Operations on type-level lists and tuples, together with their curried versions.
 license:             BSD3
@@ -26,7 +26,7 @@
 library
   exposed-modules:     Data.Type.List
   build-depends:       base >=4.7 && <4.9
-                      ,singletons >= 1.0 && < 2.1
+                      ,singletons >= 1.0 && < 2.2
   hs-source-dirs:      src
   default-language:    Haskell2010
   ghc-options:         -Wall