diff --git a/CHANGELOG.md b/CHANGELOG.md
index e045038..0e8423f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.12.2](https://github.com/CQCL/portgraph/compare/v0.12.1...v0.12.2) - 2024-07-05
+
+### Bug Fixes
+- Intergraph edges in mermaid rendering ([#139](https://github.com/CQCL/portgraph/pull/139))
+
+### New Features
+- Add PortOffset::opposite ([#136](https://github.com/CQCL/portgraph/pull/136))
+- Efficient LCA algorithm for the hierarchy ([#138](https://github.com/CQCL/portgraph/pull/138))
+
+### Testing
+- Use `insta` for mermaid/dot render tests ([#137](https://github.com/CQCL/portgraph/pull/137))
+
 ## [0.12.1](https://github.com/CQCL/portgraph/compare/v0.12.0...v0.12.1) - 2024-06-03
 
 ### Bug Fixes
diff --git a/Cargo.toml b/Cargo.toml
index 873c208..a8ed34d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "portgraph"
-version = "0.12.1"
+version = "0.12.2"
 license = "Apache-2.0"
 
 readme = "README.md"