diff --git a/cloudfunctions/execLinuxShell/package-lock.json b/cloudfunctions/execLinuxShell/package-lock.json
index b370119..6575a1b 100644
--- a/cloudfunctions/execLinuxShell/package-lock.json
+++ b/cloudfunctions/execLinuxShell/package-lock.json
@@ -133,6 +133,15 @@
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       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "cpu-features": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/cpu-features/-/cpu-features-0.0.2.tgz",
+      "integrity": "sha512-/2yieBqvMcRj8McNzkycjW2v3OIUOibBfd2dLEJ0nWts8NobAxwiyw9phVNS6oDL8x8tz9F7uNVFEVpJncQpeA==",
+      "optional": true,
+      "requires": {
+        "nan": "^2.14.1"
+      }
+    },
     "dashdash": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
@@ -307,6 +316,12 @@
         "mime-db": "~1.38.0"
       }
     },
+    "nan": {
+      "version": "2.15.0",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.15.0.tgz",
+      "integrity": "sha512-8ZtvEnA2c5aYCZYd1cvgdnU6cqwixRoYg70xPLWUws5ORTa/lnw+u4amixRS/Ac5U5mQVgp9pnlSUnbNWFaWZQ==",
+      "optional": true
+    },
     "oauth-sign": {
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
@@ -390,21 +405,14 @@
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     },
     "ssh2": {
-      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/ssh2/-/ssh2-0.8.2.tgz",
-      "integrity": "sha512-oaXu7faddvPFGavnLBkk0RFwLXvIzCPq6KqAC3ExlnFPAVIE1uo7pWHe9xmhNHXm+nIe7yg9qsssOm+ip2jijw==",
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/ssh2/-/ssh2-1.4.0.tgz",
+      "integrity": "sha512-XvXwcXKvS452DyQvCa6Ct+chpucwc/UyxgliYz+rWXJ3jDHdtBb9xgmxJdMmnIn5bpgGAEV3KaEsH98ZGPHqwg==",
       "requires": {
-        "ssh2-streams": "~0.4.2"
-      }
-    },
-    "ssh2-streams": {
-      "version": "0.4.2",
-      "resolved": "https://registry.npmjs.org/ssh2-streams/-/ssh2-streams-0.4.2.tgz",
-      "integrity": "sha512-2rSj3oTIJnbAIzR3+XwIYef9wCOVrPQZNLL+fFPPjnPxf09tKkAbgrlYgh/1qynBTz65AUOS+s1zuko4M/GKCw==",
-      "requires": {
-        "asn1": "~0.2.0",
+        "asn1": "^0.2.4",
         "bcrypt-pbkdf": "^1.0.2",
-        "streamsearch": "~0.1.2"
+        "cpu-features": "0.0.2",
+        "nan": "^2.15.0"
       }
     },
     "sshpk": {
@@ -423,11 +431,6 @@
         "tweetnacl": "~0.14.0"
       }
     },
-    "streamsearch": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/streamsearch/-/streamsearch-0.1.2.tgz",
-      "integrity": "sha1-gIudDlb8Jz2Am6VzOOkpkZoanxo="
-    },
     "tcb-admin-node": {
       "version": "1.4.6",
       "resolved": "https://registry.npmjs.org/tcb-admin-node/-/tcb-admin-node-1.4.6.tgz",
diff --git a/cloudfunctions/execLinuxShell/package.json b/cloudfunctions/execLinuxShell/package.json
index 7db9a0b..e9fc6e4 100644
--- a/cloudfunctions/execLinuxShell/package.json
+++ b/cloudfunctions/execLinuxShell/package.json
@@ -9,7 +9,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "ssh2": "^0.8.2",
+    "ssh2": "^1.4.0",
     "wx-server-sdk": "^0.2.2"
   }
 }