diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c4e1f24..4079806f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
 ## Pending
+
+## [3.5.1] 2025-12-04
 ### Fixed
 - Attach `transaction_id` to error context to support querying for matching logs in errors service.
 
diff --git a/setup.py b/setup.py
index 9389b4b1..398685c3 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@
 
 setup(
     name="scout_apm",
-    version="3.5.0",
+    version="3.5.1",
     description="Scout Application Performance Monitoring Agent",
     long_description=long_description,
     long_description_content_type="text/markdown",