diff --git a/package.json b/package.json
index 1411267d..abdc230a 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "antlr4ts": "^0.4.1-alpha.0",
+    "antlr4ts": "^0.5.0-alpha.4",
     "change-case": "4.1.2",
     "estree-walker": "2.0.2",
     "filbert": "0.1.20",
diff --git a/yarn.lock b/yarn.lock
index 5d280479..7475ce9f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1168,6 +1168,11 @@ antlr4ts@^0.4.1-alpha.0:
   resolved "https://registry.yarnpkg.com/antlr4ts/-/antlr4ts-0.4.1-alpha.0.tgz#ac5717f30f3efa3617b004e8ff4f860b9c7d4d20"
   integrity sha1-rFcX8w8++jYXsATo/0+GC5x9TSA=
 
+antlr4ts@^0.5.0-alpha.4:
+  version "0.5.0-alpha.4"
+  resolved "https://registry.yarnpkg.com/antlr4ts/-/antlr4ts-0.5.0-alpha.4.tgz#71702865a87478ed0b40c0709f422cf14d51652a"
+  integrity sha512-WPQDt1B74OfPv/IMS2ekXAKkTZIHl88uMetg6q3OTqgFxZ/dxDXI0EWLyZid/1Pe6hTftyg5N7gel5wNAGxXyQ==
+
 anymatch@^3.0.3:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-3.1.2.tgz#c0557c096af32f106198f4f4e2a383537e378716"