--- a/gloss.cabal
+++ b/gloss.cabal
@@ -40,8 +40,8 @@ Library
           base                          >= 4.8 && < 5
         , ghc-prim
         , bmp                           == 1.2.*
-        , bytestring                    == 0.11.*
-        , containers                    >= 0.5 && < 0.7
+        , bytestring                    >= 0.11 && < 0.13
+        , containers                    >= 0.5 && < 0.8
         , gloss-rendering               == 1.13.*
         , GLUT                          == 2.7.*
         , OpenGL                        >= 2.12 && < 3.1
