diff --git a/docker/nginx.conf b/docker/nginx.conf
index a8e283a641877903fd3e8a31f89b60db65adb28d..5f86992c8fbb8accbb878e6c9c93366d1ab8eb26 100644
--- a/docker/nginx.conf
+++ b/docker/nginx.conf
@@ -4,7 +4,7 @@ server {
     gzip on;
     gzip_min_length 1k;
     gzip_comp_level 9;
-    gzip_types text/plain application/javascript application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png;
+    gzip_types text/plain text/css text/javascript application/json application/javascript application/x-javascript application/xml;
     gzip_vary on;
     gzip_disable "MSIE [1-6]\.";