diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78212a56..8099299d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@ All notable changes to this project will be documented in this file. The format
 
 ## [Unreleased]
 
+## [8.5.1] - 2024-05-08
+
 ### Fixed
 - Fix the gradient evaluation in `NeoHookeCompressible(mu=1, lmbda=None)`.
 - Fix `MaterialStrain.plot()`.
diff --git a/src/felupe/__about__.py b/src/felupe/__about__.py
index 37e09938..f75455a1 100644
--- a/src/felupe/__about__.py
+++ b/src/felupe/__about__.py
@@ -1 +1 @@
-__version__ = "8.6.0-dev"
+__version__ = "8.5.1"