diff --git a/otc-web-admin/package.json b/otc-web-admin/package.json
index 0a8f2ecd..c2a89a0f 100644
--- a/otc-web-admin/package.json
+++ b/otc-web-admin/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "axios": "^0.16.2",
     "flag": "^2.0.3",
-    "flat": "^2.0.1",
+    "flat": "^5.0.1",
     "grid-styled": "^2.0.0-9",
     "hidden-styled": "^1.0.0-0",
     "join-path": "^1.1.1",
diff --git a/otc-web-admin/yarn.lock b/otc-web-admin/yarn.lock
index f067cd8f..6a38ac4c 100644
--- a/otc-web-admin/yarn.lock
+++ b/otc-web-admin/yarn.lock
@@ -2631,11 +2631,9 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
-flat@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/flat/-/flat-2.0.1.tgz#70e29188a74be0c3c89409eed1fa9577907ae32f"
-  dependencies:
-    is-buffer "~1.1.2"
+flat@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/flat/-/flat-5.0.1.tgz#ed5f357d6c9e754d1fdc392b1d570426f8e013c2"
 
 flatten@^1.0.2:
   version "1.0.2"
@@ -3246,7 +3244,7 @@ is-binary-path@^1.0.0:
   dependencies:
     binary-extensions "^1.0.0"
 
-is-buffer@^1.1.5, is-buffer@~1.1.2:
+is-buffer@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.5.tgz#1f3b26ef613b214b88cbca23cc6c01d87961eecc"