diff --git a/deploy_hed/Dockerfile b/deploy_hed/Dockerfile
index 483fd27..6fb1ef8 100644
--- a/deploy_hed/Dockerfile
+++ b/deploy_hed/Dockerfile
@@ -40,4 +40,4 @@ ENV HEDTOOLS_CONFIG_CLASS=config.ProductionConfig
 EXPOSE 33000
 
 # Run the Flask application with Gunicorn, binding to port 33000
-CMD ["gunicorn", "-w", "4", "-b", "127.0.0.1:33000", "runserver:app"]
+CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:33000", "runserver:app"]
diff --git a/deploy_hed_dev/Dockerfile b/deploy_hed_dev/Dockerfile
index 27f1a8e..443e17a 100644
--- a/deploy_hed_dev/Dockerfile
+++ b/deploy_hed_dev/Dockerfile
@@ -41,4 +41,4 @@ ENV HEDTOOLS_CONFIG_CLASS=config.ProductionConfig
 EXPOSE 33004
 
 # Run the Flask application with Gunicorn, binding to port 33004
-CMD ["gunicorn", "-w", "4", "-b", "127.0.0.1:33004", "runserver:app"]
+CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:33004", "runserver:app"]