diff --git a/modules/openapi-generator/src/main/resources/python-fastapi/requirements.mustache b/modules/openapi-generator/src/main/resources/python-fastapi/requirements.mustache
index bfab4265174b..b9d0ed402cad 100644
--- a/modules/openapi-generator/src/main/resources/python-fastapi/requirements.mustache
+++ b/modules/openapi-generator/src/main/resources/python-fastapi/requirements.mustache
@@ -2,7 +2,7 @@ aiofiles==23.1.0
 aniso8601==7.0.0
 async-exit-stack==1.0.1
 async-generator==1.10
-certifi==2024.7.4
+certifi==2026.10.19
 chardet==4.0.0
 click==7.1.2
 dnspython==2.6.1
diff --git a/samples/server/petstore/python-fastapi/requirements.txt b/samples/server/petstore/python-fastapi/requirements.txt
index bfab4265174b..b9d0ed402cad 100644
--- a/samples/server/petstore/python-fastapi/requirements.txt
+++ b/samples/server/petstore/python-fastapi/requirements.txt
@@ -2,7 +2,7 @@ aiofiles==23.1.0
 aniso8601==7.0.0
 async-exit-stack==1.0.1
 async-generator==1.10
-certifi==2024.7.4
+certifi==2026.10.19
 chardet==4.0.0
 click==7.1.2
 dnspython==2.6.1