diff --git a/ascii.cabal b/ascii.cabal
--- a/ascii.cabal
+++ b/ascii.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.0
 
 name: ascii
-version: 1.0.1.2
+version: 1.0.1.4
 synopsis: The ASCII character set and encoding
 category: Data, Text
 
@@ -18,7 +18,7 @@
 
 build-type: Simple
 
-tested-with: GHC == 8.10.1, GHC == 8.8.1, GHC == 8.6.5, GHC == 8.4.3
+tested-with: GHC == 9.0.1, GHC == 8.10.1, GHC == 8.8.1, GHC == 8.6.5, GHC == 8.4.3
 
 extra-source-files: changelog.txt
 
@@ -31,7 +31,7 @@
     default-extensions: NoImplicitPrelude
     ghc-options: -Wall
 
-    build-depends: base       >= 4.11 && < 4.15
+    build-depends: base       >= 4.11 && < 4.16
     build-depends: bytestring ^>= 0.10 || ^>= 0.11
     build-depends: text       ^>= 1.2
 
diff --git a/changelog.txt b/changelog.txt
--- a/changelog.txt
+++ b/changelog.txt
@@ -15,3 +15,5 @@
         - convertStringOrFail
 
 1.0.1.2 - 2021-02-09 - Support bytestring-0.11
+
+1.0.1.4 - 2021-02-10 - Support GHC 9.0
