diff --git a/extension.toml b/extension.toml
index 47c2d5d..7116abd 100644
--- a/extension.toml
+++ b/extension.toml
@@ -67,4 +67,4 @@ commit = "450a8194f5a66561135962cfc8d7545a27b61c4c"
 
 [grammars.heex]
 repository = "https://github.com/phoenixframework/tree-sitter-heex"
-commit = "008626a3fad379d17c81d5ed576edd9bd7a4fbf7"
+commit = "5842537f734d7c12685bf27d6005313e3e5a47a0"