diff --git a/requirements/dev.txt b/requirements/dev.txt
index bd0dbf7..6e232e9 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -6,5 +6,5 @@ yapf
 mypy
 pylint
 pytest
-datamodel-code-generator=0.25.6
+datamodel-code-generator==0.25.6
 yapf