diff --git a/lisp/progmodes/heex-ts-mode.el b/lisp/progmodes/heex-ts-mode.el
index e19349b3a0f..0f7785a3279 100644
--- a/lisp/progmodes/heex-ts-mode.el
+++ b/lisp/progmodes/heex-ts-mode.el
@@ -113,7 +113,7 @@
      `((special_attribute_name) @font-lock-keyword-face)
      :language 'heex
      :feature 'heex-string
-     `([(attribute_value) (quoted_attribute_value)] @font-lock-constant-face)
+     `([(attribute_value) (quoted_attribute_value)] @font-lock-string-face)
      :language 'heex
      :feature 'heex-component
      `([