diff --git a/scripts/gen_protos_docker.py b/scripts/gen_protos_docker.py
index 819897901..d4d8552a4 100644
--- a/scripts/gen_protos_docker.py
+++ b/scripts/gen_protos_docker.py
@@ -11,7 +11,7 @@
         os.path.join("scripts", "_proto", "Dockerfile"),
         ".",
     ],
-    capture_output=True,
+    stdout=subprocess.PIPE,
     text=True,
     check=True,
 )