diff --git a/backend/yarn.lock b/backend/yarn.lock
index e22a94d..5fc3e0a 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -8,10 +8,6 @@
   dependencies:
     regenerator-runtime "^0.13.2"
 
-"@types/bcrypt@^3.0.0":
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/@types/bcrypt/-/bcrypt-3.0.0.tgz#851489a9065a067cb7f3c9cbe4ce9bed8bba0876"
-
 "@types/body-parser@*":
   version "1.17.0"
   resolved "https://registry.yarnpkg.com/@types/body-parser/-/body-parser-1.17.0.tgz#9f5c9d9bd04bb54be32d5eb9fc0d8c974e6cf58c"
@@ -37,6 +33,18 @@
   dependencies:
     "@types/express" "*"
 
+"@types/cors@^2.8.5":
+  version "2.8.8"
+  resolved "https://registry.yarnpkg.com/@types/cors/-/cors-2.8.8.tgz#317a8d8561995c60e35b9e0fcaa8d36660c98092"
+  dependencies:
+    "@types/express" "*"
+
+"@types/dotenv@^6.1.1":
+  version "6.1.1"
+  resolved "https://registry.yarnpkg.com/@types/dotenv/-/dotenv-6.1.1.tgz#f7ce1cc4fe34f0a4373ba99fefa437b0bec54b46"
+  dependencies:
+    "@types/node" "*"
+
 "@types/express-serve-static-core@*":
   version "4.16.4"
   resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.16.4.tgz#56bb8be4559401d68af4a3624ae9dd3166103e60"
@@ -70,12 +78,6 @@
   version "14.2.0"
   resolved "https://registry.yarnpkg.com/@types/graphql/-/graphql-14.2.0.tgz#74e1da5f2a4a744ac6eb3ed57b48242ea9367202"
 
-"@types/jsonwebtoken@^8.3.2":
-  version "8.3.2"
-  resolved "https://registry.yarnpkg.com/@types/jsonwebtoken/-/jsonwebtoken-8.3.2.tgz#e3d5245197152346fae7ee87d5541aa5a92d0362"
-  dependencies:
-    "@types/node" "*"
-
 "@types/lodash.groupby@^4.6.4":
   version "4.6.6"
   resolved "https://registry.yarnpkg.com/@types/lodash.groupby/-/lodash.groupby-4.6.6.tgz#4d9b61a4d8b0d83d384975cabfed4c1769d6792e"
@@ -444,7 +446,7 @@ core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
-cors@^2.8.4:
+cors@^2.8.4, cors@^2.8.5:
   version "2.8.5"
   resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
   dependencies:
@@ -1290,8 +1292,8 @@ object-hash@^1.3.1:
   resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.3.1.tgz#fde452098a951cb145f039bb7d455449ddc126df"
 
 object-path@^0.11.4:
-  version "0.11.4"
-  resolved "https://registry.yarnpkg.com/object-path/-/object-path-0.11.4.tgz#370ae752fbf37de3ea70a861c23bba8915691949"
+  version "0.11.5"
+  resolved "https://registry.yarnpkg.com/object-path/-/object-path-0.11.5.tgz#d4e3cf19601a5140a55a16ad712019a9c50b577a"
 
 on-finished@~2.3.0:
   version "2.3.0"