diff --git a/conf/gunicorn_local.py b/conf/gunicorn_local.py
index 49a30682d..f95d85cc1 100644
--- a/conf/gunicorn_local.py
+++ b/conf/gunicorn_local.py
@@ -1,3 +1,5 @@
+from Crypto import Random
+
 bind = '0.0.0.0:5000'
 workers = 2
 worker_class = 'gevent'
@@ -5,3 +7,8 @@ daemon = False
 logconfig = 'conf/logging_debug.conf'
 pythonpath = '.'
 preload_app = True
+
+def post_fork(server, worker):
+  # Reset the Random library to ensure it won't raise the "PID check failed." error after
+  # gunicorn forks.
+  Random.atfork()
diff --git a/conf/gunicorn_registry.py b/conf/gunicorn_registry.py
index 944608868..9d7f080c1 100644
--- a/conf/gunicorn_registry.py
+++ b/conf/gunicorn_registry.py
@@ -1,6 +1,13 @@
+from Crypto import Random
+
 bind = 'unix:/tmp/gunicorn_registry.sock'
 workers = 8
 worker_class = 'gevent'
 logconfig = 'conf/logging.conf'
 pythonpath = '.'
 preload_app = True
+
+def post_fork(server, worker):
+  # Reset the Random library to ensure it won't raise the "PID check failed." error after
+  # gunicorn forks.
+  Random.atfork()