diff --git a/dev-requirements.txt b/dev-requirements.txt
index 00a20797..fc3bcc0e 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,4 +1,4 @@
-pydantic_openapi_helper==0.2.4
+pydantic_openapi_helper==0.2.6
 coverage==5.5
 coveralls==2.2.0
 pytest==6.2.2