diff --git a/.devtools/install_dependencies.bat b/.devtools/install_dependencies.bat
index f5633e7d..63923597 100644
--- a/.devtools/install_dependencies.bat
+++ b/.devtools/install_dependencies.bat
@@ -1,4 +1,4 @@
 pushd ..
 call composer install
-yarn install
+call yarn install
 popd
diff --git a/.devtools/update_dependencies.bat b/.devtools/update_dependencies.bat
index d89d3063..22e05ea7 100644
--- a/.devtools/update_dependencies.bat
+++ b/.devtools/update_dependencies.bat
@@ -1,4 +1,4 @@
 pushd ..
 call composer update
-yarn upgrade
+call yarn upgrade
 popd