diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for language-c99-util
 
+## 0.1.1 -- 2019-04-01
+
+* Fixed version bounds on dependencies.
+
 ## 0.1.0.0 -- 2019-03-30
 
 * First version. Very basic version with support for copilot.
diff --git a/language-c99-util.cabal b/language-c99-util.cabal
--- a/language-c99-util.cabal
+++ b/language-c99-util.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                language-c99-util
-version:             0.1.0.0
+version:             0.1.1
 synopsis:            Utilities for language-c99.
 description:
   This library contains a number of utility functions and wrappers for the
@@ -29,6 +29,6 @@
                      Language.C99.Util.Expr
   -- other-extensions:
   build-depends:     base >=4.9 && <5,
-                     language-c99 == 0.1.*
+                     language-c99 >= 0.1 && < 0.2
   hs-source-dirs:    src
   default-language:  Haskell2010