diff --git a/include/tree_sitter/runtime.h b/include/tree_sitter/runtime.h
index 4ba92db4..9efb6328 100644
--- a/include/tree_sitter/runtime.h
+++ b/include/tree_sitter/runtime.h
@@ -9,7 +9,7 @@ extern "C" {
 #include <stdint.h>
 #include <stdbool.h>
 
-#define TREE_SITTER_LANGUAGE_VERSION 5
+#define TREE_SITTER_LANGUAGE_VERSION 6
 
 typedef unsigned short TSSymbol;
 typedef struct TSLanguage TSLanguage;