diff --git a/CHANGELOG.md b/CHANGELOG.md
index 706d618..0ef41fe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+### v1.5.1 (2024-02-27)
+
+- **Fixes**:
+    - Relax bounds on `Default` implementation for all map and set types. Requiring `K: Default` and `V: Default` was accidentally introduced in v1.5.0.
+
+
 ### v1.5.0 (2024-02-09) "xfbs rampage edition"
 
 Huge thanks to [xfbs](https://github.com/xfbs), who did pretty much all the work you see in the changelog below! 💖
diff --git a/Cargo.toml b/Cargo.toml
index 15e35d6..3a95b21 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rangemap"
-version = "1.5.0"
+version = "1.5.1"
 authors = ["Jeff Parsons <jeff@parsons.io>"]
 edition = "2018"
 license = "MIT/Apache-2.0"