diff --git a/CHANGES.markdown b/CHANGES.markdown
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,3 +1,21 @@
+0.3.0.3 (10 July 2023)
+---------------------
+
+- Allow `base-4.18` (GHC 9.6)
+- Fix cabal warning
+
+0.3.0.2 (22 Feb 2019)
+---------------------
+
+- Allow `base-4.12`
+- Allow `containers-0.6`
+
+- r1: allow `base-4.13`
+- r2 (14 Aug 2021): allow `base-4.15`
+- r3 (30 Dec 2021): allow `base-4.16` (GHC 9.2)
+- r4 (27 Aug 2022): allow `base-4.17` (GHC 9.4)
+- r5 (7 Nov 2022): allow `MonadRandom-0.6`
+
 0.3.0.1 (8 May 2018)
 --------------------
 
diff --git a/palette.cabal b/palette.cabal
--- a/palette.cabal
+++ b/palette.cabal
@@ -1,10 +1,10 @@
 Name:                palette
-Version:             0.3.0.2
+Version:             0.3.0.3
 Synopsis:            Utilities for choosing and creating color schemes.
 Description:         Sets of predefined colors and tools for choosing and
                      creating color schemes. Random colors.
 
-Homepage:            http://projects.haskell.org/diagrams
+Homepage:            https://diagrams.github.io
 License:             BSD3
 License-file:        LICENSE
 Author:              Jeffrey Rosenbluth
@@ -13,9 +13,9 @@
 Category:            Data
 Build-type:          Simple
 Cabal-version:       1.18
-Extra-source-files:  README.markdown, CHANGES.markdown, diagrams/*.svg
-Extra-doc-files:     diagrams/*.svg
-Tested-with:         GHC == 7.8.4, GHC == 7.10.2, GHC == 8.0.1, GHC == 8.2.2, GHC == 8.4.2, GHC == 8.6.3
+Extra-source-files:  README.markdown, diagrams/*.svg
+Extra-doc-files:     diagrams/*.svg, CHANGES.markdown
+Tested-with:         GHC ==8.0.2 || == 8.2.2 || == 8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.7 || ==9.0.2 || ==9.2.7 || ==9.4.5 || ==9.6.1
 Source-repository head
   type:     git
   location: http://github.com/diagrams/palette.git
@@ -28,9 +28,9 @@
                        Data.Colour.Palette.Types
                        Data.Colour.Palette.RandomColor
 
-  Build-depends:       base >= 4.2 && < 4.13,
+  Build-depends:       base >= 4.2 && < 4.19,
                        array >= 0.4 && < 0.6,
-                       colour >= 2.3 && <3.0,
+                       colour >= 2.3 && < 3.0,
                        containers >= 0.5 && < 0.7,
-                       MonadRandom >= 0.5 && < 0.6
+                       MonadRandom >= 0.5 && < 0.7
   hs-source-dirs:      src