diff --git a/package.json b/package.json
index 0f31778..731fc0c 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "semi": true
   },
   "dependencies": {
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.21",
     "moment": "^2.18.1",
     "percentile": "^1.2.0",
     "plotly.js": "^1.35",
diff --git a/yarn.lock b/yarn.lock
index 13c3298..51f0d5e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -71,7 +71,7 @@
 
 "@sinonjs/formatio@^2.0.0":
   version "2.0.0"
-  resolved "http://registry.npmjs.org/@sinonjs/formatio/-/formatio-2.0.0.tgz#84db7e9eb5531df18a8c5e0bfb6e449e55e654b2"
+  resolved "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-2.0.0.tgz#84db7e9eb5531df18a8c5e0bfb6e449e55e654b2"
   dependencies:
     samsam "1.3.0"
 
@@ -3310,9 +3310,9 @@ lodash@^3.10.1, lodash@^3.8.0:
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
 
-lodash@^4.0.1, lodash@^4.14.0, lodash@^4.16.2, lodash@^4.17.4, lodash@^4.5.0, lodash@~4.17.4, lodash@~4.17.5:
-  version "4.17.5"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
+lodash@^4.0.1, lodash@^4.14.0, lodash@^4.16.2, lodash@^4.17.21, lodash@^4.17.4, lodash@^4.5.0, lodash@~4.17.4, lodash@~4.17.5:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lodash@~4.3.0:
   version "4.3.0"