diff --git a/backend/package.json b/backend/package.json
index 89e8bbebb..c6c56a267 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -71,7 +71,7 @@
   },
   "devDependencies": {
     "@babel/cli": "~7.4.3",
-    "@babel/core": "~7.4.3",
+    "@babel/core": "~7.4.4",
     "@babel/node": "~7.2.2",
     "@babel/plugin-proposal-throw-expressions": "^7.2.0",
     "@babel/preset-env": "~7.4.4",
diff --git a/backend/yarn.lock b/backend/yarn.lock
index b2eb98315..f3d8728f6 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -38,18 +38,18 @@
   dependencies:
     "@babel/highlight" "^7.0.0"
 
-"@babel/core@^7.1.0", "@babel/core@~7.4.3":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.4.3.tgz#198d6d3af4567be3989550d97e068de94503074f"
-  integrity sha512-oDpASqKFlbspQfzAE7yaeTmdljSH2ADIvBlb0RwbStltTuWa0+7CCI1fYVINNv9saHPa1W7oaKeuNuKj+RQCvA==
+"@babel/core@^7.1.0", "@babel/core@~7.4.4":
+  version "7.4.4"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.4.4.tgz#84055750b05fcd50f9915a826b44fa347a825250"
+  integrity sha512-lQgGX3FPRgbz2SKmhMtYgJvVzGZrmjaF4apZ2bLwofAKiSjxU0drPh4S/VasyYXwaTs+A1gvQ45BN8SQJzHsQQ==
   dependencies:
     "@babel/code-frame" "^7.0.0"
-    "@babel/generator" "^7.4.0"
-    "@babel/helpers" "^7.4.3"
-    "@babel/parser" "^7.4.3"
-    "@babel/template" "^7.4.0"
-    "@babel/traverse" "^7.4.3"
-    "@babel/types" "^7.4.0"
+    "@babel/generator" "^7.4.4"
+    "@babel/helpers" "^7.4.4"
+    "@babel/parser" "^7.4.4"
+    "@babel/template" "^7.4.4"
+    "@babel/traverse" "^7.4.4"
+    "@babel/types" "^7.4.4"
     convert-source-map "^1.1.0"
     debug "^4.1.0"
     json5 "^2.1.0"
@@ -58,18 +58,7 @@
     semver "^5.4.1"
     source-map "^0.5.0"
 
-"@babel/generator@^7.0.0", "@babel/generator@^7.4.0":
-  version "7.4.0"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.4.0.tgz#c230e79589ae7a729fd4631b9ded4dc220418196"
-  integrity sha512-/v5I+a1jhGSKLgZDcmAUZ4K/VePi43eRkUs3yePW1HB1iANOD5tqJXwGSG4BZhSksP8J9ejSlwGeTiiOFZOrXQ==
-  dependencies:
-    "@babel/types" "^7.4.0"
-    jsesc "^2.5.1"
-    lodash "^4.17.11"
-    source-map "^0.5.0"
-    trim-right "^1.0.1"
-
-"@babel/generator@^7.4.4":
+"@babel/generator@^7.0.0", "@babel/generator@^7.4.4":
   version "7.4.4"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.4.4.tgz#174a215eb843fc392c7edcaabeaa873de6e8f041"
   integrity sha512-53UOLK6TVNqKxf7RUh8NE851EHRxOOeVXKbK2bivdb+iziMyk03Sr4eaE9OELCbyZAAafAKPDwF2TPUES5QbxQ==
@@ -254,13 +243,6 @@
   dependencies:
     "@babel/types" "^7.0.0"
 
-"@babel/helper-split-export-declaration@^7.4.0":
-  version "7.4.0"
-  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.4.0.tgz#571bfd52701f492920d63b7f735030e9a3e10b55"
-  integrity sha512-7Cuc6JZiYShaZnybDmfwhY4UYHzI6rlqhWjaIqbsJGsIqPimEYy5uh3akSRLMg65LSdSEnJ8a8/bWQN6u2oMGw==
-  dependencies:
-    "@babel/types" "^7.4.0"
-
 "@babel/helper-split-export-declaration@^7.4.4":
   version "7.4.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.4.4.tgz#ff94894a340be78f53f06af038b205c49d993677"
@@ -278,14 +260,14 @@
     "@babel/traverse" "^7.1.0"
     "@babel/types" "^7.2.0"
 
-"@babel/helpers@^7.4.3":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.4.3.tgz#7b1d354363494b31cb9a2417ae86af32b7853a3b"
-  integrity sha512-BMh7X0oZqb36CfyhvtbSmcWc3GXocfxv3yNsAEuM0l+fAqSO22rQrUpijr3oE/10jCTrB6/0b9kzmG4VetCj8Q==
+"@babel/helpers@^7.4.4":
+  version "7.4.4"
+  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.4.4.tgz#868b0ef59c1dd4e78744562d5ce1b59c89f2f2a5"
+  integrity sha512-igczbR/0SeuPR8RFfC7tGrbdTbFL3QTvH6D+Z6zNxnTe//GyqmtHmDkzrqDmyZ3eSwPqB/LhyKoU5DXsp+Vp2A==
   dependencies:
-    "@babel/template" "^7.4.0"
-    "@babel/traverse" "^7.4.3"
-    "@babel/types" "^7.4.0"
+    "@babel/template" "^7.4.4"
+    "@babel/traverse" "^7.4.4"
+    "@babel/types" "^7.4.4"
 
 "@babel/highlight@^7.0.0":
   version "7.0.0"
@@ -307,12 +289,7 @@
     lodash "^4.17.10"
     v8flags "^3.1.1"
 
-"@babel/parser@^7.0.0", "@babel/parser@^7.1.0", "@babel/parser@^7.4.0", "@babel/parser@^7.4.3":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.4.3.tgz#eb3ac80f64aa101c907d4ce5406360fe75b7895b"
-  integrity sha512-gxpEUhTS1sGA63EGQGuA+WESPR/6tz6ng7tSHFCmaTJK/cGK8y37cBTspX+U2xCAue2IQVvF6Z0oigmjwD8YGQ==
-
-"@babel/parser@^7.4.4":
+"@babel/parser@^7.0.0", "@babel/parser@^7.1.0", "@babel/parser@^7.4.4":
   version "7.4.4"
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.4.4.tgz#5977129431b8fe33471730d255ce8654ae1250b6"
   integrity sha512-5pCS4mOsL+ANsFZGdvNLybx4wtqAZJ0MJjMHxvzI3bvIsz6sQvzW8XX92EYIkiPtIvcfG3Aj+Ir5VNyjnZhP7w==
@@ -734,16 +711,7 @@
   dependencies:
     regenerator-runtime "^0.13.2"
 
-"@babel/template@^7.0.0", "@babel/template@^7.1.0", "@babel/template@^7.4.0":
-  version "7.4.0"
-  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.4.0.tgz#12474e9c077bae585c5d835a95c0b0b790c25c8b"
-  integrity sha512-SOWwxxClTTh5NdbbYZ0BmaBVzxzTh2tO/TeLTbF6MO6EzVhHTnff8CdBXx3mEtazFBoysmEM6GU/wF+SuSx4Fw==
-  dependencies:
-    "@babel/code-frame" "^7.0.0"
-    "@babel/parser" "^7.4.0"
-    "@babel/types" "^7.4.0"
-
-"@babel/template@^7.4.4":
+"@babel/template@^7.0.0", "@babel/template@^7.1.0", "@babel/template@^7.4.4":
   version "7.4.4"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.4.4.tgz#f4b88d1225689a08f5bc3a17483545be9e4ed237"
   integrity sha512-CiGzLN9KgAvgZsnivND7rkA+AeJ9JB0ciPOD4U59GKbQP2iQl+olF1l76kJOupqidozfZ32ghwBEJDhnk9MEcw==
@@ -752,22 +720,7 @@
     "@babel/parser" "^7.4.4"
     "@babel/types" "^7.4.4"
 
-"@babel/traverse@^7.0.0", "@babel/traverse@^7.1.0", "@babel/traverse@^7.4.3":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.4.3.tgz#1a01f078fc575d589ff30c0f71bf3c3d9ccbad84"
-  integrity sha512-HmA01qrtaCwwJWpSKpA948cBvU5BrmviAief/b3AVw936DtcdsTexlbyzNuDnthwhOQ37xshn7hvQaEQk7ISYQ==
-  dependencies:
-    "@babel/code-frame" "^7.0.0"
-    "@babel/generator" "^7.4.0"
-    "@babel/helper-function-name" "^7.1.0"
-    "@babel/helper-split-export-declaration" "^7.4.0"
-    "@babel/parser" "^7.4.3"
-    "@babel/types" "^7.4.0"
-    debug "^4.1.0"
-    globals "^11.1.0"
-    lodash "^4.17.11"
-
-"@babel/traverse@^7.4.4":
+"@babel/traverse@^7.0.0", "@babel/traverse@^7.1.0", "@babel/traverse@^7.4.4":
   version "7.4.4"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.4.4.tgz#0776f038f6d78361860b6823887d4f3937133fe8"
   integrity sha512-Gw6qqkw/e6AGzlyj9KnkabJX7VcubqPtkUQVAwkc0wUMldr3A/hezNB3Rc5eIvId95iSGkGIOe5hh1kMKf951A==
@@ -782,7 +735,7 @@
     globals "^11.1.0"
     lodash "^4.17.11"
 
-"@babel/types@^7.0.0", "@babel/types@^7.2.0", "@babel/types@^7.3.0", "@babel/types@^7.4.0", "@babel/types@^7.4.4":
+"@babel/types@^7.0.0", "@babel/types@^7.2.0", "@babel/types@^7.3.0", "@babel/types@^7.4.4":
   version "7.4.4"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.4.4.tgz#8db9e9a629bb7c29370009b4b779ed93fe57d5f0"
   integrity sha512-dOllgYdnEFOebhkKCjzSVFqw/PmmB8pH6RGOWkY4GsboQNd47b1fBThBSwlHAq9alF9vc1M3+6oqR47R50L0tQ==