diff --git a/package.json b/package.json
index 6430e19..8eb0a9c 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "gatsby-transformer-sharp": "^2.2.3",
     "invariant": "^2.2.4",
     "katex": "^0.10.2",
-    "lodash": "^4.17.13",
+    "lodash": "^4.17.15",
     "moment": "^2.24.0",
     "netlify-cms-app": "^2.9.6",
     "node-sass": "^4.12.0",
diff --git a/yarn.lock b/yarn.lock
index 377f6d8..a6c74bc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8715,7 +8715,7 @@ lodash@4.17.11:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
 
-lodash@^4.0.0, lodash@^4.1.1, lodash@^4.11.1, lodash@^4.15.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@~4.17.10:
+lodash@^4.0.0, lodash@^4.1.1, lodash@^4.11.1, lodash@^4.15.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@~4.17.10:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"