diff --git a/step-func/yarn.lock b/step-func/yarn.lock
index f036322..6b0d30f 100644
--- a/step-func/yarn.lock
+++ b/step-func/yarn.lock
@@ -82,8 +82,8 @@ jmespath@0.15.0:
   resolved "https://registry.yarnpkg.com/jmespath/-/jmespath-0.15.0.tgz#a3f222a9aae9f966f5d27c796510e28091764217"
 
 lodash@^4.0.0, lodash@^4.13.1:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
 
 punycode@1.3.2:
   version "1.3.2"