diff --git a/debian/rules b/debian/rules
index c92ad71..e462052 100755
--- a/debian/rules
+++ b/debian/rules
@@ -6,7 +6,7 @@ export PYBUILD_NAME=check-patroni
 
 execute_before_dh_installman:
 	mkdir --parent $(CURDIR)/debian/tmp
-	PYTHONPATH=debian/check-patroni/usr/lib/python3.11/dist-packages \
+	PYTHONPATH=debian/check-patroni/usr/lib/python3.9/dist-packages \
 		help2man \
 		--no-info \
 		--include=$(CURDIR)/debian/check_patroni.1.in \