diff --git a/capnp/CHANGELOG.md b/capnp/CHANGELOG.md
index c5547a3c6..74df6a00e 100644
--- a/capnp/CHANGELOG.md
+++ b/capnp/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.18.2
+- Add SingleSegmentAllocator, for use in no-alloc contexts.
+
 ## v0.18.1
 - Add #[inline] attribute to many text::Reader and text::Builder methods.
 
diff --git a/capnp/Cargo.toml b/capnp/Cargo.toml
index 79435d8f3..2f56c9f15 100644
--- a/capnp/Cargo.toml
+++ b/capnp/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "capnp"
-version = "0.18.1"
+version = "0.18.2"
 authors = [ "David Renshaw <dwrenshaw@gmail.com>" ]
 license = "MIT"
 description = "runtime library for Cap'n Proto data encoding"