diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for chronos
 
+## 1.1.6.2 -- 2024-12-11
+
+* Support GHC 9.10
+
 ## 1.1.6.1 -- 2024-02-15
 
 * Update package metadata.
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -62,4 +62,7 @@
     cabal build
     cabal repl --build-depends=QuickCheck --with-ghc=doctest --repl-options='-fno-warn-orphans'
 
-Doctest now runs as part of CI.
+This runs incredibly slowly, but it works for now. Doctest is not run by CI,
+so if you make a change that adds more doctests, it needs to be run by hand
+by someone. (The maintainer is happy to do this if you're on a platform
+where doctest is finicky.)
diff --git a/chronos.cabal b/chronos.cabal
--- a/chronos.cabal
+++ b/chronos.cabal
@@ -1,6 +1,6 @@
 cabal-version:   3.0
 name:            chronos
-version:         1.1.6.1
+version:         1.1.6.2
 synopsis:        A high-performance time library
 description:
   Chronos is a performance-oriented time library for Haskell, with a
@@ -58,7 +58,7 @@
   build-depends:
     , aeson               >=1.1     && <2.3
     , attoparsec          >=0.13    && <0.15
-    , base                >=4.14    && <4.20
+    , base                >=4.14    && <5
     , bytebuild           >=0.3.14  && <0.4
     , byteslice           >=0.2.5.2 && <0.3
     , bytesmith           >=0.3.7   && <0.4