diff --git a/client-samples/python/rest/dev-requirements.txt b/client-samples/python/rest/dev-requirements.txt
index e59f476e..245b6072 100644
--- a/client-samples/python/rest/dev-requirements.txt
+++ b/client-samples/python/rest/dev-requirements.txt
@@ -1,4 +1,4 @@
-black==26.5.1
+black==26.10.1
 requests-mock==1.12.1
 pytest==9.1.1
 parameterized==0.9.0
\ No newline at end of file