diff --git a/.changeset/shiny-horses-promise.md b/.changeset/shiny-horses-promise.md
new file mode 100644
index 00000000000..5ea9aa012e7
--- /dev/null
+++ b/.changeset/shiny-horses-promise.md
@@ -0,0 +1,5 @@
+---
+"@primer/react": patch
+---
+
+Move Header component css module feature flag to ga
diff --git a/packages/react/src/Header/Header.tsx b/packages/react/src/Header/Header.tsx
index e36b2d983b1..33c7a6b7b0d 100644
--- a/packages/react/src/Header/Header.tsx
+++ b/packages/react/src/Header/Header.tsx
@@ -15,7 +15,7 @@ type StyledHeaderProps = React.ComponentProps<'header'> & SxProp
 type StyledHeaderItemProps = React.ComponentProps<'div'> & SxProp & {full?: boolean}
 type StyledHeaderLinkProps = React.ComponentProps<'a'> & SxProp & {to?: Location | Pathname}
 
-const CSS_MODULES_FEATURE_FLAG = 'primer_react_css_modules_staff'
+const CSS_MODULES_FEATURE_FLAG = 'primer_react_css_modules_ga'
 
 const StyledHeader = toggleStyledComponent(
   CSS_MODULES_FEATURE_FLAG,