diff --git a/ipa.cabal b/ipa.cabal
--- a/ipa.cabal
+++ b/ipa.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               ipa
-version:            0.1.0.0
+version:            0.1.0.1
 synopsis:           Internal Phonetic Alphabet (IPA)
 description:
   Types and tools for working with the International Phonetic Alphabet (IPA)
@@ -31,7 +31,7 @@
 library
   import:           common-options, common-extensions
   build-depends:
-    , base                ^>=4.13.0.0
+    , base                >=4.10  && <=5
     , text                ^>=1.2.4
     , unicode-transforms  ^>=0.3.7