diff --git a/CHANGELOG.md b/CHANGELOG.md
index a39d959e..0d0dd3b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ Breaking changes
 * The traits `RegisterFn` and `RegisterResultFn` are removed.  `Engine::register_fn` and `Engine::register_result_fn` are now implemented directly on `Engine`.
 * `FnPtr::call_dynamic` now takes `&NativeCallContext` instead of consuming it.
 * All `Module::set_fn_XXX` methods are removed, in favor of `Module::set_native_fn`.
+* `protected`, `super` are now reserved keywords.
 
 Enhancements
 ------------
diff --git a/src/token.rs b/src/token.rs
index 909442c3..4c697381 100644
--- a/src/token.rs
+++ b/src/token.rs
@@ -576,10 +576,10 @@ impl Token {
             "import" | "export" | "as" => Reserved(syntax.into()),
 
             "===" | "!==" | "->" | "<-" | ":=" | "~" | "::<" | "(*" | "*)" | "#" | "public"
-            | "new" | "use" | "module" | "package" | "var" | "static" | "begin" | "end"
-            | "shared" | "with" | "each" | "then" | "goto" | "unless" | "exit" | "match"
-            | "case" | "default" | "void" | "null" | "nil" | "spawn" | "thread" | "go" | "sync"
-            | "async" | "await" | "yield" => Reserved(syntax.into()),
+            | "protected" | "super" | "new" | "use" | "module" | "package" | "var" | "static"
+            | "begin" | "end" | "shared" | "with" | "each" | "then" | "goto" | "unless"
+            | "exit" | "match" | "case" | "default" | "void" | "null" | "nil" | "spawn"
+            | "thread" | "go" | "sync" | "async" | "await" | "yield" => Reserved(syntax.into()),
 
             KEYWORD_PRINT | KEYWORD_DEBUG | KEYWORD_TYPE_OF | KEYWORD_EVAL | KEYWORD_FN_PTR
             | KEYWORD_FN_PTR_CALL | KEYWORD_FN_PTR_CURRY | KEYWORD_THIS | KEYWORD_IS_DEF_VAR => {