diff --git a/scripts/ci/install-deps.sh b/scripts/ci/install-deps.sh
index 7d53ea8..09c8fcb 100755
--- a/scripts/ci/install-deps.sh
+++ b/scripts/ci/install-deps.sh
@@ -2,4 +2,4 @@
 
 set -ex
 
-yarn install $@
+yarn install --pure-lockfile $@