diff --git a/.mill-jvm-opts b/.mill-jvm-opts
index 9782885324..01ea797f40 100644
--- a/.mill-jvm-opts
+++ b/.mill-jvm-opts
@@ -1,4 +1,4 @@
--Xmx2048m
+-Xmx4096m
 -Xms128m
 -Xss8m
 -Dxsbt.skip.cp.lookup=true