diff --git a/spug_web/package.json b/spug_web/package.json
index fe78d77..3ea0bce 100644
--- a/spug_web/package.json
+++ b/spug_web/package.json
@@ -10,7 +10,7 @@
     "bizcharts": "^3.5.6",
     "history": "^4.10.1",
     "http-proxy-middleware": "^0.20.0",
-    "lodash": "^4.17.19",
+    "lodash": "^4.17.21",
     "mobx": "^5.15.0",
     "mobx-react": "^6.1.4",
     "moment": "^2.24.0",
diff --git a/spug_web/yarn.lock b/spug_web/yarn.lock
index 3db8dbd..c42c9ac 100644
--- a/spug_web/yarn.lock
+++ b/spug_web/yarn.lock
@@ -6877,10 +6877,10 @@ 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@^4.16.5, 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@^4.17.4, 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==
+"lodash@>=3.5 <5", lodash@^4.16.5, lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.21, lodash@^4.17.4, lodash@^4.17.5:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 loglevel@^1.4.1:
   version "1.6.4"