diff --git a/source/_headers b/source/_headers
index d33567d39d7..b1d6e467a2a 100644
--- a/source/_headers
+++ b/source/_headers
@@ -1,5 +1,5 @@
 /*
-  Cache-Control: public, max-age: 0, s-maxage=3600, must-revalidate
+  Cache-Control: public, max-age=0, s-maxage=3600, must-revalidate
   Content-Security-Policy: form-action https:
   Feature-Policy: geolocation 'none'; midi 'none'; microphone 'none'; camera 'none'; magnetometer 'none'; gyroscope 'none'; payment 'none'
   Permissions-Policy: geolocation=(), midi=(), microphone=(), camera=(), magnetometer=(), gyroscope=(), payment=()
@@ -7,14 +7,14 @@
   X-Content-Type-Options: nosniff
   X-XSS-Protection: 1; mode=block
 /*.css
-  Cache-Control: public, max-age: 604800, s-maxage=604800
+  Cache-Control: public, max-age=604800, s-maxage=604800
 /*.js
-  Cache-Control: public, max-age: 604800, s-maxage=604800
+  Cache-Control: public, max-age=604800, s-maxage=604800
 /assets/*
-  Cache-Control: public, max-age: 0, s-maxage=604800, must-revalidate
+  Cache-Control: public, max-age=0, s-maxage=604800, must-revalidate
 /fonts/*
-  Cache-Control: public, max-age: 1800, s-maxage=604800, must-revalidate
+  Cache-Control: public, max-age=1800, s-maxage=604800, must-revalidate
 /images/*
-  Cache-Control: public, max-age: 1800, s-maxage=604800, must-revalidate
+  Cache-Control: public, max-age=1800, s-maxage=604800, must-revalidate
 /static/*
-  Cache-Control: public, max-age: 1800, s-maxage=604800, must-revalidate
+  Cache-Control: public, max-age=1800, s-maxage=604800, must-revalidate