diff --git a/package-lock.json b/package-lock.json
index 539e476..5428d15 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1962,11 +1962,6 @@
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     },
-    "graceful-readlink": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz",
-      "integrity": "sha1-TK+tdrxi8C+gObL5Tpo906ORpyU="
-    },
     "grpc": {
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       "resolved": "https://registry.npmjs.org/grpc/-/grpc-1.21.1.tgz",
@@ -2987,9 +2982,9 @@
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     },
     "lodash.merge": {
-      "version": "4.6.1",
-      "resolved": "https://registry.npmjs.org/lodash.merge/-/lodash.merge-4.6.1.tgz",
-      "integrity": "sha512-AOYza4+Hf5z1/0Hztxpm2/xiPZgi/cjMqdnKTUWTBSKchJlxXXuUSxCCl8rJlf4g6yww/j6mA8nC8Hw/EZWxKQ==",
+      "version": "4.6.2",
+      "resolved": "https://registry.npmjs.org/lodash.merge/-/lodash.merge-4.6.2.tgz",
+      "integrity": "sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==",
       "optional": true
     },
     "lodash.once": {
@@ -3945,14 +3940,6 @@
       "integrity": "sha1-EMCI2LWOsHazIpu1oE4jLOEmQi0=",
       "optional": true
     },
-    "source-map": {
-      "version": "0.4.4",
-      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
-      "integrity": "sha1-66T12pwNyZneaAMti092FzZSA2s=",
-      "requires": {
-        "amdefine": ">=0.0.4"
-      }
-    },
     "sparse-bitfield": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",