diff --git a/CHANGELOG-6.x.md b/CHANGELOG-6.x.md
index e831e62..22f5de8 100644
--- a/CHANGELOG-6.x.md
+++ b/CHANGELOG-6.x.md
@@ -2,6 +2,14 @@
 
 This changelog references the relevant changes (bug and security fixes) done to `orchestra/testbench-browser-kit`.
 
+## 6.20.0
+
+Released: 2023-10-04
+
+### Changes
+
+* Update minimum support for Testbench v6.39.0+. ([v6.34.0...v6.39.0](https://github.com/orchestral/testbench/compare/v6.34.0...v6.39.0))
+
 ## 6.19.0
 
 Released: 2023-08-29