diff --git a/.npmrc b/.npmrc
index f031c449b21..38a7eb153c0 100644
--- a/.npmrc
+++ b/.npmrc
@@ -1 +1,4 @@
+save-exact=true
+# Increase available heap size to avoid running out of memory when compiling.
+# This applies to all npm scripts in this repository.
 node-options=--max-old-space-size=8192