diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,2 +1,5 @@
+### 0.1.1 [2021.11.17]
+* Include a `Setup.hs` file.
+
 ## 0.1 [2021.08.29]
 * Backport the `Eq` and `Ord` instances for `BigNat`.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,3 @@
+module Main where
+import Distribution.Simple
+main = defaultMain
diff --git a/ghc-bignum-orphans.cabal b/ghc-bignum-orphans.cabal
--- a/ghc-bignum-orphans.cabal
+++ b/ghc-bignum-orphans.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               ghc-bignum-orphans
-version:            0.1
+version:            0.1.1
 synopsis:           Backwards-compatible orphan instances for ghc-bignum
 description:        @ghc-bignum-orphans@ defines orphan instances that mimic
                     instances available in later versions of @ghc-bignum@ to a
@@ -15,7 +15,7 @@
 category:           Compatibility
 extra-source-files: CHANGELOG.md, README.md
 tested-with:        GHC == 9.0.1
-                     || == 9.2.*
+                     || == 9.2.1
 
 source-repository head
   type:               git