diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.1.0.2
+
+* Relax upper bound on `base`: 4.20 -> 4.21
+
 ## 0.1.0.0
 
 * Initial release
diff --git a/anitomata.cabal b/anitomata.cabal
--- a/anitomata.cabal
+++ b/anitomata.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           anitomata
-version:        0.1.0.1
+version:        0.1.0.2
 synopsis:       Composable sprite animation
 description:    Composable 2D sprite animation in Haskell.
 category:       Game
diff --git a/package.yaml b/package.yaml
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name: anitomata
-version: 0.1.0.1
+version: 0.1.0.2
 homepage: https://sr.ht/~jship/anitomata/
 git: https://git.sr.ht/~jship/anitomata/
 license: MIT