diff --git a/CHANGELOG.md b/CHANGELOG.md
index 25142c3..1ba261b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## 1.5.8
+
+- Switch `Cache-Control` optimization header from 'private' to 'public'.
+
 ## 1.5.7
 
 - Fix a bug with the `FPMPool` class.
diff --git a/nginx/templates/optimization.conf b/nginx/templates/optimization.conf
index a6fca36..d87cf4a 100644
--- a/nginx/templates/optimization.conf
+++ b/nginx/templates/optimization.conf
@@ -1,5 +1,5 @@
 expires 1w;
-add_header Cache-Control "no-cache, private";
+add_header Cache-Control "no-cache, public";
 
 include mime.types;
 types {