diff --git a/README.md b/README.md
index 682b551..aaee61f 100644
--- a/README.md
+++ b/README.md
@@ -36,10 +36,10 @@ http {
   }
 
   server {
-    proxy_cache static;
-    proxy_cache_use_stale  error timeout invalid_header updating;
-    proxy_cache_revalidate  on;
-    proxy_cache_valid  200 404 1m;
+    proxy_cache                    static;
+    proxy_cache_use_stale          error timeout;
+    proxy_cache_revalidate         on;
+    proxy_cache_valid              200 404 1m;
     proxy_cache_background_update  on;
 
     location / {
diff --git a/main.go b/main.go
index de7ea58..f081a64 100644
--- a/main.go
+++ b/main.go
@@ -24,7 +24,7 @@ type MountPoint struct {
 	Prefix string
 }
 
-const defaultCacheControl = "public, max-age=60, stale-while-revalidate=86400, stale-if-error=86400"
+const defaultCacheControl = "public, max-age=60, must-revalidate"
 
 var client *storage.Client
 var mountPoints []MountPoint