diff --git a/package-lock.json b/package-lock.json
index 8bcd449..e8d96cd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1061,9 +1061,9 @@
       "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
     },
     "yarn": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/yarn/-/yarn-1.6.0.tgz",
-      "integrity": "sha1-nOxveYbcI3057HBc502VFV/lXUs="
+      "version": "1.22.0",
+      "resolved": "https://registry.npmjs.org/yarn/-/yarn-1.22.0.tgz",
+      "integrity": "sha512-KMHP/Jq53jZKTY9iTUt3dIVl/be6UPs2INo96+BnZHLKxYNTfwMmlgHTaMWyGZoO74RI4AIFvnWhYrXq2USJkg=="
     }
   }
 }
diff --git a/package.json b/package.json
index 96333ed..dc32006 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "eslint": "^4.19.1",
     "mongodb": "^3.0.6",
     "uuid": "^3.2.1",
-    "yarn": "^1.6.0"
+    "yarn": "^1.22.0"
   },
   "devDependencies": {},
   "scripts": {
diff --git a/yarn.lock b/yarn.lock
index 269cb48..eee1625 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -838,6 +838,6 @@ yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
 
-yarn@^1.6.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.7.0.tgz#0076b9fde6010e01950526a609bc53bc175ef925"
+yarn@^1.22.0:
+  version "1.22.0"
+  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.22.0.tgz#acf82906e36bcccd1ccab1cfb73b87509667c881"