diff --git a/examples/dataflow-flex-python/requirements.txt b/examples/dataflow-flex-python/requirements.txt
index 5cb94f9f26..4eb884e423 100644
--- a/examples/dataflow-flex-python/requirements.txt
+++ b/examples/dataflow-flex-python/requirements.txt
@@ -21,7 +21,7 @@
 
 apache-beam==2.40.0
 cachetools==4.2.4
-certifi==2022.12.7
+certifi==2023.7.22
 charset-normalizer==2.1.1
 cloudpickle==2.2.0
 crcmod==1.7