diff --git a/package.json b/package.json
index 011f390..7008d71 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "imagemin": "^5.3.1",
     "imagemin-mozjpeg": "^6.0.0",
     "imagemin-pngquant": "^5.0.1",
-    "lodash": "^4.16.1",
+    "lodash": "^4.17.19",
     "mailchimp-api": "^2.0.7",
     "memorystore": "^1.6.1",
     "moment-timezone": "^0.5.13",
diff --git a/yarn.lock b/yarn.lock
index 2eee21f..b94cca0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1007,7 +1007,7 @@ compressible@~2.0.13:
 
 compression@^1.7.1:
   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"
   dependencies:
     accepts "~1.3.4"
     bytes "3.0.0"
@@ -1274,15 +1274,15 @@ debug@2.6.9:
   dependencies:
     ms "2.0.0"
 
-debug@^2.1.0, debug@^2.2.0, debug@^2.3.3:
-  version "2.6.8"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
+debug@3.1.0, debug@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   dependencies:
     ms "2.0.0"
 
-debug@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+debug@^2.1.0, debug@^2.2.0, debug@^2.3.3:
+  version "2.6.8"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
   dependencies:
     ms "2.0.0"
 
@@ -3589,13 +3589,9 @@ lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
-lodash@^4.13.1:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
-
-lodash@^4.16.1, lodash@^4.17.4:
-  version "4.17.5"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
+lodash@^4.13.1, lodash@^4.17.19, lodash@^4.17.4:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
 
 lodash@~1.0.1:
   version "1.0.2"
@@ -3675,6 +3671,13 @@ lru-cache@^4.0.1:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
 
+lru-cache@^4.0.3:
+  version "4.1.5"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.5.tgz#8bbe50ea85bed59bc9e33dcab8235ee9bcf443cd"
+  dependencies:
+    pseudomap "^1.0.2"
+    yallist "^2.1.2"
+
 macaddress@^0.2.8:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/macaddress/-/macaddress-0.2.8.tgz#5904dc537c39ec6dbefeae902327135fa8511f12"
@@ -3726,6 +3729,13 @@ media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
 
+memorystore@^1.6.1:
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/memorystore/-/memorystore-1.6.2.tgz#66e7190d7d54885372c1aec3e256b92e3bf1d163"
+  dependencies:
+    debug "3.1.0"
+    lru-cache "^4.0.3"
+
 meow@^3.1.0, meow@^3.3.0, meow@^3.5.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
@@ -4180,7 +4190,7 @@ onecolor@^3.0.4:
 
 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"
 
 optimist@^0.6.1:
   version "0.6.1"