diff --git a/package.json b/package.json
index d8b57d3..5f6af49 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "aws-sdk": "2.x",
     "bluebird": "3.x",
     "node-s3-encryption-client": "^0.0.2",
-    "ssh2": "^0.5.0"
+    "ssh2": "^1.4.0"
   },
   "devDependencies": {
     "aws-lambda-mock-context": "^1.1.0",
diff --git a/yarn.lock b/yarn.lock
index 4bdd1bc..73ac7c8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1,8 +1,12 @@
 # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
 # yarn lockfile v1
-asn1@~0.2.0:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
+
+
+asn1@^0.2.4:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.4.tgz#8d2475dfab553bb33e77b54e59e880bb8ce23136"
+  dependencies:
+    safer-buffer "~2.1.0"
 
 aws-lambda-mock-context@^1.1.0:
   version "1.1.0"
@@ -32,6 +36,12 @@ base64-js@^1.0.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.2.0.tgz#a39992d723584811982be5e290bb6a53d86700f1"
 
+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"
+
 bluebird@3.x:
   version "3.4.6"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.6.tgz#01da8d821d87813d158967e743d5fe6c62cf8c0f"
@@ -52,6 +62,12 @@ commander@2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.3.0.tgz#fd430e889832ec353b9acd1de217c11cb3eef873"
 
+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"
+
 crypto-browserify@1.0.9:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-1.0.9.tgz#cc5449685dfb85eb11c9828acc7cb87ab5bbfcc0"
@@ -170,6 +186,10 @@ ms@0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
 
+nan@^2.14.1, nan@^2.15.0:
+  version "2.15.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.15.0.tgz#3f34a473ff18e15c1b5626b62903b5ad6e665fee"
+
 node-s3-encryption-client@^0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/node-s3-encryption-client/-/node-s3-encryption-client-0.0.2.tgz#37a9e20f42728f402a74fa4f1afcc17665af91c4"
@@ -206,25 +226,25 @@ querystring@0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
 
-samsam@~1.1:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/samsam/-/samsam-1.1.3.tgz#9f5087419b4d091f232571e7fa52e90b0f552621"
+safer-buffer@~2.1.0:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
 
 samsam@1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/samsam/-/samsam-1.1.2.tgz#bec11fdc83a9fda063401210e40176c3024d1567"
 
-sax@>=0.6.0:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.1.tgz#7b8e656190b228e81a66aea748480d828cd2d37a"
+samsam@~1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/samsam/-/samsam-1.1.3.tgz#9f5087419b4d091f232571e7fa52e90b0f552621"
 
 sax@1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.1.5.tgz#1da50a8d00cdecd59405659f5ff85349fe773743"
 
-semver@^5.1.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
+sax@>=0.6.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.1.tgz#7b8e656190b228e81a66aea748480d828cd2d37a"
 
 sigmund@~1.0.0:
   version "1.0.1"
@@ -239,23 +259,15 @@ sinon@^1.17.3:
     samsam "1.1.2"
     util ">=0.10.3 <1"
 
-ssh2-streams@~0.1.15:
-  version "0.1.16"
-  resolved "https://registry.yarnpkg.com/ssh2-streams/-/ssh2-streams-0.1.16.tgz#ac9d3ce9e062f8cf08fcce5b3a274b6d5cecdc54"
-  dependencies:
-    asn1 "~0.2.0"
-    semver "^5.1.0"
-    streamsearch "~0.1.2"
-
-ssh2@^0.5.0:
-  version "0.5.4"
-  resolved "https://registry.yarnpkg.com/ssh2/-/ssh2-0.5.4.tgz#1bf6b6b28c96eaef267f4d6c46a5a2517a599e27"
+ssh2@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ssh2/-/ssh2-1.4.0.tgz#e32e8343394364c922bad915a5a7fecd67d0f5c5"
   dependencies:
-    ssh2-streams "~0.1.15"
-
-streamsearch@~0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/streamsearch/-/streamsearch-0.1.2.tgz#808b9d0e56fc273d809ba57338e929919a1a9f1a"
+    asn1 "^0.2.4"
+    bcrypt-pbkdf "^1.0.2"
+  optionalDependencies:
+    cpu-features "0.0.2"
+    nan "^2.15.0"
 
 supports-color@1.2.0:
   version "1.2.0"
@@ -265,6 +277,10 @@ to-iso-string@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/to-iso-string/-/to-iso-string-0.0.2.tgz#4dc19e664dfccbe25bd8db508b00c6da158255d1"
 
+tweetnacl@^0.14.3:
+  version "0.14.5"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
+
 url@0.10.3:
   version "0.10.3"
   resolved "https://registry.yarnpkg.com/url/-/url-0.10.3.tgz#021e4d9c7705f21bbf37d03ceb58767402774c64"
@@ -289,13 +305,12 @@ xml2js@0.4.15:
     sax ">=0.6.0"
     xmlbuilder ">=2.4.6"
 
-xmlbuilder@>=2.4.6:
-  version "8.2.2"
-  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-8.2.2.tgz#69248673410b4ba42e1a6136551d2922335aa773"
-
 xmlbuilder@2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-2.6.2.tgz#f916f6d10d45dc171b1be2e6e673fb6e0cc35d0a"
   dependencies:
     lodash "~3.5.0"
 
+xmlbuilder@>=2.4.6:
+  version "8.2.2"
+  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-8.2.2.tgz#69248673410b4ba42e1a6136551d2922335aa773"