diff --git a/GLUtil.cabal b/GLUtil.cabal
--- a/GLUtil.cabal
+++ b/GLUtil.cabal
@@ -1,5 +1,5 @@
 Name:                GLUtil
-Version:             0.6.6
+Version:             0.6.7
 Synopsis:            Miscellaneous OpenGL utilities.
 License:             BSD3
 License-file:        LICENSE
@@ -47,7 +47,7 @@
   Build-depends:       base >= 4.2 && < 5,
                        bytestring,
                        array,
-                       containers,
+                       containers >= 0.5,
                        linear >= 1.1.3,
                        JuicyPixels >= 3,
                        OpenGLRaw >= 1.1,