diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a9e39315..f46ec6dda 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ Change Log
 
 See [4.x Change log](https://square.github.io/okhttp/changelogs/changelog_4x/) for the stable version changelogs.
 
+## Version 5.3.1
+
+_2025-11-16_
+
+*  Fix: Don't delay triggering timeouts. In Okio 3.16.0 we introduced a regression that caused
+   timeouts to fire later than they were supposed to.
+
+*  Upgrade: [Okio 3.16.3][okio_3_16_3].
+
+
 ## Version 5.3.0
 
 _2025-10-30_
@@ -33,6 +43,16 @@ _2025-10-30_
     [16 KB ELF alignment checks][elf_alignment].
 
 
+## Version 5.2.2
+
+_2025-11-16_
+
+ *  Fix: Don't delay triggering timeouts. In Okio 3.16.0 we introduced a regression that caused
+    timeouts to fire later than they were supposed to.
+
+ *  Upgrade: [Okio 3.16.3][okio_3_16_3].
+
+
 ## Version 5.2.1
 
 _2025-10-09_
@@ -754,6 +774,7 @@ release is the version name.
 [okio_3_16_0]: https://square.github.io/okio/changelog/#version-3160
 [okio_3_16_1]: https://square.github.io/okio/changelog/#version-3161
 [okio_3_16_2]: https://square.github.io/okio/changelog/#version-3162
+[okio_3_16_3]: https://square.github.io/okio/changelog/#version-3163
 [okio_3_1_0]: https://square.github.io/okio/changelog/#version-310
 [okio_3_2_0]: https://square.github.io/okio/changelog/#version-320
 [okio_3_7_0]: https://square.github.io/okio/changelog/#version-370