diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+0.2.0.10 (2021-10-16):
+	- Changed from TravisCI to GithubActions
 0.2.0.9 (2019-04-13):
     - Changed cabal to use Simple build type, to support cabal's new-build.
 	- Removed the CPP hack for Haddock documentation, as part
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 exact-combinatorics
 ===================
 [![Hackage version](https://img.shields.io/hackage/v/exact-combinatorics.svg?style=flat)](https://hackage.haskell.org/package/exact-combinatorics) 
-[![Hackage-Deps](https://img.shields.io/hackage-deps/v/exact-combinatorics.svg?style=flat)](http://packdeps.haskellers.com/specific?package=exact-combinatorics)
-[![TravisCI Build Status](https://img.shields.io/travis/wrengr/exact-combinatorics.svg?style=flat)](https://travis-ci.org/wrengr/exact-combinatorics) 
+[![Build Status](https://github.com/wrengr/exact-combinatorics/workflows/ci/badge.svg)](https://github.com/wrengr/exact-combinatorics/actions?query=workflow%3Aci)
+[![Dependencies](https://img.shields.io/hackage-deps/v/exact-combinatorics.svg?style=flat)](http://packdeps.haskellers.com/specific?package=exact-combinatorics)
 
 Efficient exact computation of combinatoric functions.
 
diff --git a/exact-combinatorics.cabal b/exact-combinatorics.cabal
--- a/exact-combinatorics.cabal
+++ b/exact-combinatorics.cabal
@@ -1,21 +1,18 @@
 ----------------------------------------------------------------
--- wren gayle romano <wren@cpan.org>                ~ 2019.04.13
+-- wren gayle romano <wren@cpan.org>                ~ 2021.10.16
 ----------------------------------------------------------------
 
--- By and large Cabal >=1.2 is fine; but
--- * >=1.6 gives tested-with: and source-repository:
--- * >=1.8 allows executables to build-depends: on the library
--- * >=1.9.2 allows Test-Suite
-Cabal-Version:  >= 1.9.2
+-- Cabal >=1.10 is required by Hackage.
+Cabal-Version:  >= 1.10
 Build-Type:     Simple
 
 Name:           exact-combinatorics
-Version:        0.2.0.9
+Version:        0.2.0.10
 Stability:      experimental
 Homepage:       https://wrengr.org/
 Author:         wren gayle romano
 Maintainer:     wren@cpan.org
-Copyright:      Copyright (c) 2011--2019 wren gayle romano
+Copyright:      Copyright (c) 2011--2021 wren gayle romano
 License:        BSD3
 License-File:   LICENSE
 
@@ -26,16 +23,16 @@
 Extra-source-files:
     CHANGELOG, README.md
 
--- Cf., <https://travis-ci.org/wrengr/exact-combinatorics>
+-- This should work as far back as GHC 7.4.1, but we don't verify that by CI.
+-- <https://github.com/wrengr/exact-combinatorics/actions?query=workflow%3Aci>
 Tested-With:
-    GHC ==7.4.1, GHC ==7.4.2,
-    GHC ==7.6.1, GHC ==7.6.2, GHC ==7.6.3,
-    GHC ==7.8.1, GHC ==7.8.2, GHC ==7.8.3, GHC ==7.8.4,
-    GHC ==7.10.1, GHC ==7.10.2, GHC ==7.10.3,
-    GHC ==8.0.1, GHC ==8.0.2,
-    GHC ==8.2.1, GHC ==8.2.2,
-    GHC ==8.4.1, GHC ==8.4.2, GHC ==8.4.3,
-    GHC ==8.6.1, GHC ==8.6.2
+    GHC ==8.0.2,
+    GHC ==8.2.2,
+    GHC ==8.4.4,
+    GHC ==8.6.5,
+    GHC ==8.8.4,
+    GHC ==8.10.3,
+    GHC ==9.0.1
 
 Source-Repository head
     Type:     git
@@ -43,6 +40,7 @@
 
 ----------------------------------------------------------------
 Library
+    Default-Language: Haskell2010
     Hs-Source-Dirs:  src
     Exposed-Modules: Math.Combinatorics.Exact.Primes
                    , Math.Combinatorics.Exact.Factorial