diff --git a/13-istanbul/package-lock.json b/13-istanbul/package-lock.json
index 9134c75..c42cd82 100644
--- a/13-istanbul/package-lock.json
+++ b/13-istanbul/package-lock.json
@@ -1393,9 +1393,9 @@
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     },
     "lodash": {
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-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.10.tgz",
-      "integrity": "sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg=="
+      "version": "4.17.19",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
+      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ=="
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     "lodash.get": {
       "version": "4.4.2",