diff --git a/netlify.toml b/netlify.toml
index ec4099b65..6d60c9340 100644
--- a/netlify.toml
+++ b/netlify.toml
@@ -1,2 +1,3 @@
 [build.environment]
   NODE_VERSION = "12"
+  YARN_VERSION = "1.22.4"