diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3df1b4c..c73e0bc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # CHANGELOG
 
+## v0.3.1
+
+> 📅 **Date** 2025-1-16
+
+- 🔧 Upgrade:
+    - `mkdocs` to 1.6.1
+    - `nbconvert` to 7.16.5
+    - hooks in pre-commit
+
+- 🔨: Remove unused packages in `requirements.txt` and `pyproject.toml`
+
 ## v0.3
 
 > 📅 **Date** 2024-4-7