diff --git a/package.json b/package.json
index 524f87e9..eff989ff 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "jsdom-nogyp": "^0.8.3",
     "keymaster": "^1.6.2",
     "list.js": "^1.5.0",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.19",
     "lz-string": "git+https://github.com/hackmdio/lz-string.git",
     "markdown-it": "^8.2.2",
     "markdown-it-abbr": "^1.0.4",
diff --git a/yarn.lock b/yarn.lock
index bddcab02..69b8291a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2304,7 +2304,7 @@ compressible@~2.0.13:
 
 compression@^1.6.2:
   version "1.7.2"
-  resolved "http://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
+  resolved "https://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
   integrity sha1-qv+81qr4VLROuygDU9WtFlH1mmk=
   dependencies:
     accepts "~1.3.4"
@@ -6427,15 +6427,10 @@ lodash@^3.6.0:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
   integrity sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=
 
-lodash@^4.0.0, lodash@^4.11.1, lodash@^4.14.2, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.8.0:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
-  integrity sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==
-
-lodash@^4.17.11:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
+lodash@^4.0.0, lodash@^4.11.1, lodash@^4.14.2, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.19, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.8.0:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
+  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
 lodash@~1.0.1:
   version "1.0.2"
@@ -7533,7 +7528,7 @@ once@~1.3.0:
 
 onetime@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+  resolved "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
   integrity sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=
 
 onetime@^2.0.0: