diff --git a/package.json b/package.json
index 6ac74eedb..fc1289a22 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "lodash": "^4.17.21",
     "random-lib": "^2.1.0",
     "simple-rc4": "0.0.1-b",
-    "ssh2": "^0.5.2",
+    "ssh2": "^1.4.0",
     "time-grunt": "^1.4.0",
     "tslint": "^3.10.2",
     "typescript": "^2.0.3",
diff --git a/yarn.lock b/yarn.lock
index 21881f98f..224704b95 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -309,9 +309,11 @@ asn1@0.1.11:
   version "0.1.11"
   resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.1.11.tgz#559be18376d08a4ec4dbe80877d27818639b2df7"
 
-asn1@~0.2.0, asn1@~0.2.3:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
+asn1@^0.2.4, asn1@~0.2.3:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.4.tgz#8d2475dfab553bb33e77b54e59e880bb8ce23136"
+  dependencies:
+    safer-buffer "~2.1.0"
 
 assert-plus@^0.1.5:
   version "0.1.5"
@@ -424,9 +426,9 @@ base64url@2.0.0, base64url@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/base64url/-/base64url-2.0.0.tgz#eac16e03ea1438eff9423d69baa36262ed1f70bb"
 
-bcrypt-pbkdf@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.0.tgz#3ca76b85241c7170bf7d9703e7b9aa74630040d4"
+bcrypt-pbkdf@^1.0.0, bcrypt-pbkdf@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz#a4301d389b6a43f9b67ff3ca11a3f6637e360e9e"
   dependencies:
     tweetnacl "^0.14.3"
 
@@ -1257,6 +1259,12 @@ 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"
 
+cpu-features@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/cpu-features/-/cpu-features-0.0.2.tgz#9f636156f1155fd04bdbaa028bb3c2fbef3cea7a"
+  dependencies:
+    nan "^2.14.1"
+
 crc32-stream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/crc32-stream/-/crc32-stream-1.0.0.tgz#ea155e5e1d738ed3778438ffe92ffe2a141aeb3f"
@@ -3633,6 +3641,10 @@ mz@2.4.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
+nan@^2.14.1, nan@^2.15.0:
+  version "2.15.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.15.0.tgz#3f34a473ff18e15c1b5626b62903b5ad6e665fee"
+
 nan@^2.3.0, nan@^2.3.2:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.4.0.tgz#fb3c59d45fe4effe215f0b890f8adf6eb32d2232"
@@ -4648,6 +4660,10 @@ safe-buffer@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.0.1.tgz#d263ca54696cd8a306b5ca6551e92de57918fbe7"
 
+safer-buffer@~2.1.0:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
+
 sax@0.3.5:
   version "0.3.5"
   resolved "https://registry.yarnpkg.com/sax/-/sax-0.3.5.tgz#88fcfc1f73c0c8bbd5b7c776b6d3f3501eed073d"
@@ -4907,19 +4923,15 @@ sprintf-js@^1.0.3, sprintf-js@~1.0.2, sprintf-js@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
 
-ssh2-streams@~0.1.9:
-  version "0.1.12"
-  resolved "https://registry.yarnpkg.com/ssh2-streams/-/ssh2-streams-0.1.12.tgz#828a969638b8969eb5a4ff200fa9af6c760fcd35"
-  dependencies:
-    asn1 "~0.2.0"
-    semver "^5.1.0"
-    streamsearch "~0.1.2"
-
-ssh2@^0.5.2:
-  version "0.5.2"
-  resolved "https://registry.yarnpkg.com/ssh2/-/ssh2-0.5.2.tgz#58ab2aaa96b796e28858f1de676054121607b69d"
+ssh2@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ssh2/-/ssh2-1.4.0.tgz#e32e8343394364c922bad915a5a7fecd67d0f5c5"
   dependencies:
-    ssh2-streams "~0.1.9"
+    asn1 "^0.2.4"
+    bcrypt-pbkdf "^1.0.2"
+  optionalDependencies:
+    cpu-features "0.0.2"
+    nan "^2.15.0"
 
 sshpk@^1.7.0:
   version "1.10.1"
@@ -5014,10 +5026,6 @@ stream-to-promise@2.2.0:
     end-of-stream "~1.1.0"
     stream-to-array "~2.3.0"
 
-streamsearch@~0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/streamsearch/-/streamsearch-0.1.2.tgz#808b9d0e56fc273d809ba57338e929919a1a9f1a"
-
 string-length@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/string-length/-/string-length-1.0.1.tgz#56970fb1c38558e9e70b728bf3de269ac45adfac"