diff --git a/backend/package.json b/backend/package.json
index 31bf8b9497c5cd127a0233bc3e24f7cd0f2fcb5c..8bd9f5e3fcd32e2fe8cbef4301418d6ad1fe2dfd 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -8,6 +8,7 @@
   "dependencies": {
     "body-parser": "^1.18.3",
     "celebrate": "^9.1.0",
+    "cors": "^2.8.5",
     "express": "^4.16.4",
     "mongoose": "^5.5.3"
   }
diff --git a/backend/yarn.lock b/backend/yarn.lock
index 269d36e76c81eb3676a43ca0c46feb2341d6110b..3581de1a1002bfcbbc514e1ab522ae9ca7d13f04 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -81,6 +81,14 @@ cookie@0.3.1:
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
   integrity sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s=
 
+cors@^2.8.5:
+  version "2.8.5"
+  resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
+  integrity sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==
+  dependencies:
+    object-assign "^4"
+    vary "^1"
+
 debug@2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
@@ -353,6 +361,11 @@ negotiator@0.6.1:
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
   integrity sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk=
 
+object-assign@^4:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+  integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
+
 on-finished@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
@@ -529,7 +542,7 @@ utils-merge@1.0.1:
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
   integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
 
-vary@~1.1.2:
+vary@^1, vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
   integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
diff --git a/front/package.json b/front/package.json
index 88e71603bf6142f908181e616b0eab6c11476748..2a096de73307afc1f04588330a89f0fe60992cdf 100644
--- a/front/package.json
+++ b/front/package.json
@@ -3,7 +3,6 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "cors": "^2.8.5",
     "eslint": "^5.16.0",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
diff --git a/front/src/App.js b/front/src/App.js
index ea77ae2a12f4e6d349b1dda612a0326ed13fc88f..0a672274513386d8cac48c18679308bcc402a7e8 100644
--- a/front/src/App.js
+++ b/front/src/App.js
@@ -8,7 +8,7 @@ function App() {
   return (
     <div>
     <Segment padded style={{margin:"3%"}}>
-  {/*<FormToucan /> */}
+      <FormToucan />
     </Segment>
     <Segment textAlign="center" padded style={{margin:"3%"}}>
       <ToucanTable/>
diff --git a/front/yarn.lock b/front/yarn.lock
index f3fc542471bc0fc6b24a42bd0e003a0898e5ae5a..0509569010bea2cb3602d40835f38c25289ac4f6 100644
--- a/front/yarn.lock
+++ b/front/yarn.lock
@@ -2655,14 +2655,6 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
   integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
 
-cors@^2.8.5:
-  version "2.8.5"
-  resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
-  integrity sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==
-  dependencies:
-    object-assign "^4"
-    vary "^1"
-
 cosmiconfig@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-4.0.0.tgz#760391549580bbd2df1e562bc177b13c290972dc"
@@ -6455,7 +6447,7 @@ oauth-sign@~0.9.0:
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
   integrity sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==
 
-object-assign@4.1.1, object-assign@^4, object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
+object-assign@4.1.1, object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
   integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
@@ -9492,7 +9484,7 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-vary@^1, vary@~1.1.2:
+vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
   integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=