diff --git a/package.json b/package.json
index 44b94f1..7714571 100644
--- a/package.json
+++ b/package.json
@@ -76,7 +76,7 @@
     "task-graph-runner": "^1.0.1",
     "temp-write": "^3.4.0",
     "typeable-promisify": "^2.0.1",
-    "yarn": "^1.9.4"
+    "yarn": "^2.4.3"
   },
   "jest": {
     "resetMocks": true,
diff --git a/yarn.lock b/yarn.lock
index 924c260..8025011 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4702,7 +4702,7 @@ yargs@~3.10.0:
     decamelize "^1.0.0"
     window-size "0.1.0"
 
-yarn@^1.9.4:
-  version "1.9.4"
-  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.9.4.tgz#3b82d8446b652775723900b470d966861976924b"
-  integrity sha1-O4LYRGtlJ3VyOQC0cNlmhhl2kks=
+yarn@^2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/yarn/-/yarn-2.4.3.tgz#f6f3ca06dd47eb47db34a80bd461fc936db31f04"
+  integrity sha512-HQ8VJL8v1Tlq+VVzcohmYw7dHtZ6VUB4/b2oHRGQc6Xv00AQjVk4C6cyqu4iHRI4esfgIi8S9doOm1d3Z3MlPA==