diff --git a/capnp/CHANGELOG.md b/capnp/CHANGELOG.md
index 6b73eb2c9..cd2834465 100644
--- a/capnp/CHANGELOG.md
+++ b/capnp/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.18.7
+- Update try_push_segment() to avoid possible overflow panic in 32-bit mode.
+
 ## v0.18.6
 - Add overflow checking during segment table reading, to prevent some potential denial
   of service attacks on 32-bit targets.
diff --git a/capnp/Cargo.toml b/capnp/Cargo.toml
index bb261d55f..1860c1f21 100644
--- a/capnp/Cargo.toml
+++ b/capnp/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "capnp"
-version = "0.18.6"
+version = "0.18.7"
 authors = [ "David Renshaw <dwrenshaw@gmail.com>" ]
 license = "MIT"
 description = "runtime library for Cap'n Proto data encoding"