diff --git a/CHANGES.rst b/CHANGES.rst
index ebcb94dce7..da1e6ff2f0 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -33,6 +33,7 @@ fixes:
 - docs: update tox chat server URLs (#1739)
 - chore: update Dockerfile python version (#1744)
 - chore: update errbot-backend-slackv3 version to 0.3.2 (#1743)
+- fix: allow webtest to work on python 3.13 (#1729)
 
 
 v6.2.0 (2024-01-01)
diff --git a/setup.py b/setup.py
index cb47538c59..481cf41264 100755
--- a/setup.py
+++ b/setup.py
@@ -40,6 +40,7 @@
     "pygments-markdown-lexer==0.1.0.dev39",  # sytax coloring to debug md
     "dulwich==0.21.5",  # python implementation of git
     "deepmerge==1.1.0",
+    "legacy-cgi==2.6.3; python_version >= '3.13'",  # stopgap fix for webtest after cgi dropped from stdlib in 3.13
 ]
 
 src_root = os.curdir