diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-06-21  John D. Ramsdell  <ramsdell@mitre.org>
+
+	* cmu.cabal (Version): Released as version 1.3.
+
+	* cmu.cabal (Build-Depends): changes dependency to
+	base >= 3 && <5, containers
+
 2009-09-18  John D. Ramsdell  <ramsdell@mm144697-pc.mitre.org>
 
 	* src/Algebra/CommutativeMonoid/Unification.hs: Changed
diff --git a/cmu.cabal b/cmu.cabal
--- a/cmu.cabal
+++ b/cmu.cabal
@@ -1,5 +1,5 @@
 Name:			cmu
-Version:		1.2
+Version:		1.3
 Maintainer:		ramsdell@mitre.org
 Cabal-Version:		>= 1.2
 License:		GPL
@@ -17,7 +17,7 @@
 Extra-Source-Files:	readme.txt ChangeLog Makefile
 
 Library
-  Build-Depends:	base <= 4.1.0.0, containers, array
+  Build-Depends:	base >= 3 && < 5, containers, array
   Exposed-Modules:	Algebra.CommutativeMonoid.Unification
                         Algebra.CommutativeMonoid.HomLinDiaphEq
   Hs-Source-Dirs:	src
@@ -26,7 +26,7 @@
 
 Executable cmu
   Main-Is:		Algebra/CommutativeMonoid/Main.hs
-  Build-Depends:	base <= 4.1.0.0, containers, array
+  Build-Depends:	base >= 3 && < 5, containers, array
   Other-Modules:	Algebra.CommutativeMonoid.Unification
                         Algebra.CommutativeMonoid.HomLinDiaphEq
   Hs-Source-Dirs:	src
