diff --git a/package.json b/package.json
index ce1049b7b5..d2ee6b8eec 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
         "karma-requirejs": "1.1.0",
         "karma-sourcemap-loader": "0.3.7",
         "lit-element": "^2.2.1",
-        "minimist": "^1.2.0",
+        "minimist": "^1.2.6",
         "node_resolve_index": "file:./tools/npm_packages/node_resolve_index",
         "node_resolve_index_2": "file:./tools/npm_packages/node_resolve_index_2",
         "node_resolve_index_3": "file:./tools/npm_packages/node_resolve_index_3",
diff --git a/yarn.lock b/yarn.lock
index b084744caa..589fbd985b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5070,10 +5070,10 @@ minimist@0.0.8:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
   integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
 
-minimist@^1.1.0, minimist@^1.1.3, minimist@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
-  integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
+minimist@^1.1.0, minimist@^1.1.3, minimist@^1.2.0, minimist@^1.2.6:
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.6.tgz#8637a5b759ea0d6e98702cfb3a9283323c93af44"
+  integrity sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==
 
 minimist@~0.0.1:
   version "0.0.10"