diff --git a/package.json b/package.json
index 126185a..7481a9f 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "d3-scale-chromatic": "^1.5.0",
     "d3-zoom": "^1.8.3",
     "eslint-config-airbnb": "^18.1.0",
-    "lodash": "^4.17.15",
+    "lodash": "^4.17.19",
     "query-string": "^6.9.0",
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
diff --git a/yarn.lock b/yarn.lock
index e248a2d..68b0c04 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6705,10 +6705,10 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-"lodash@>=3.5 <5", lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.5:
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+"lodash@>=3.5 <5", lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.5:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
+  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
 loglevel@^1.4.1:
   version "1.6.8"
@@ -6773,11 +6773,6 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
-materialize-css@^1.0.0-rc.2:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/materialize-css/-/materialize-css-1.0.0.tgz#8d5db1c4a81c6d65f3b2e2ca83a8e08daa24d1be"
-  integrity sha512-4/oecXl8y/1i8RDZvyvwAICyqwNoKU4or5uf8uoAd74k76KzZ0Llym4zhJ5lLNUskcqjO0AuMcvNyDkpz8Z6zw==
-
 md5.js@^1.3.4:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.5.tgz#b5d07b8e3216e3e27cd728d72f70d1e6a342005f"