diff --git a/alphachar.cabal b/alphachar.cabal
--- a/alphachar.cabal
+++ b/alphachar.cabal
@@ -1,5 +1,5 @@
 name:               alphachar
-version:            0.0.4
+version:            0.0.5
 license:            BSD3
 license-file:       LICENCE
 author:             Queensland Functional Programming Lab <oᴉ˙ldɟb@llǝʞsɐɥ>
@@ -13,7 +13,7 @@
 cabal-version:      >= 1.10
 build-type:         Simple
 extra-source-files: CONTRIBUTORS, changelog.md
-tested-with:        GHC == 8.6.1, GHC == 8.4.3, GHC == 8.2.2, GHC == 8.0.2, GHC == 7.10.3
+tested-with:        GHC == 9.8.1, GHC == 9.6.3, GHC == 9.4.7, GHC == 9.0.2, GHC == 8.6.1, GHC == 8.4.3, GHC == 8.2.2, GHC == 8.0.2, GHC == 7.10.3
 description:
   <<https://raw.githubusercontent.com/qfpl/assets/master/data61-transparent-bg.png>>
   .
@@ -28,7 +28,7 @@
                     Haskell2010
 
   build-depends:
-                    base               >= 4.7 && < 5
+                    base               >= 4.7 && < 6
                     , lens             >= 4.0 && < 6
                     , parsers          >= 0.12.3 && < 1
                     , semigroups       >= 0.12 && < 1.0
@@ -56,7 +56,7 @@
                     Haskell2010
 
   build-depends:
-                    base             >= 4.7    && < 5
+                    base             >= 4.7    && < 6
                     , lens           >= 4.0    && < 6
                     , ansi-wl-pprint >= 0.6    && < 0.7
                     , hedgehog       >= 0.5    && < 2
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,7 @@
+0.0.4
+
+* Widen version bounds.
+
 0.0.3
 
 * Rename some functions.