diff --git a/crossbeam-utils/CHANGELOG.md b/crossbeam-utils/CHANGELOG.md
index f2cbf55df..8decb6cbd 100644
--- a/crossbeam-utils/CHANGELOG.md
+++ b/crossbeam-utils/CHANGELOG.md
@@ -1,3 +1,8 @@
+# Version 0.8.10
+
+- Fix unsoundness of `AtomicCell` on types containing niches. (#834)
+  This fix contains breaking changes, but they are allowed because this is a soundness bug fix. See #834 for more.
+
 # Version 0.8.9
 
 - Replace lazy_static with once_cell. (#817)
diff --git a/crossbeam-utils/Cargo.toml b/crossbeam-utils/Cargo.toml
index f91baaea9..f541e5f86 100644
--- a/crossbeam-utils/Cargo.toml
+++ b/crossbeam-utils/Cargo.toml
@@ -4,7 +4,7 @@ name = "crossbeam-utils"
 # - Update CHANGELOG.md
 # - Update README.md
 # - Create "crossbeam-utils-X.Y.Z" git tag
-version = "0.8.9"
+version = "0.8.10"
 edition = "2018"
 rust-version = "1.36"
 license = "MIT OR Apache-2.0"