diff --git a/libraries/access-token-encryptor/lib/coffee/AccessTokenEncryptor.coffee b/libraries/access-token-encryptor/lib/coffee/AccessTokenEncryptor.coffee
index c40d853875..562b9cc4a3 100644
--- a/libraries/access-token-encryptor/lib/coffee/AccessTokenEncryptor.coffee
+++ b/libraries/access-token-encryptor/lib/coffee/AccessTokenEncryptor.coffee
@@ -3,7 +3,7 @@ crypto = require('crypto')
 ALGORITHM = 'aes-256-ctr'
 
 keyFn = (password, salt, callback)->
-	return crypto.pbkdf2(password, salt, 10000, 64, callback)
+	return crypto.pbkdf2(password, salt, 10000, 64, 'sha1', callback)
 
 class AccessTokenEncryptor
 
diff --git a/libraries/access-token-encryptor/package-lock.json b/libraries/access-token-encryptor/package-lock.json
new file mode 100644
index 0000000000..a2509543a9
--- /dev/null
+++ b/libraries/access-token-encryptor/package-lock.json
@@ -0,0 +1,931 @@
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diff --git a/libraries/access-token-encryptor/package.json b/libraries/access-token-encryptor/package.json
index c7dfef9ec0..7715b39cb9 100644
--- a/libraries/access-token-encryptor/package.json
+++ b/libraries/access-token-encryptor/package.json
@@ -1,6 +1,6 @@
 {
   "name": "access-token-encryptor-sharelatex",
-  "version": "1.0.0",
+  "version": "2.0.0",
   "description": "",
   "private": true,
   "main": "index.js",
@@ -13,16 +13,16 @@
     "coffee-script": "^1.10.0"
   },
   "devDependencies": {
-		"nock": "0.15.2",
-		"sandboxed-module": "",
-		"sinon": "",
-		"chai": "",
-		"grunt-contrib-clean": "~0.5.0",
-		"grunt-mocha-test": "~0.10.2",
-		"grunt-contrib-coffee": "~0.10.1",
-		"grunt": "~0.4.5",
-		"grunt-execute": "~0.2.1",
-		"bunyan": "~0.22.3",
-		"grunt-bunyan": "~0.5.0"
-	}
+    "nock": "0.15.2",
+    "sandboxed-module": "",
+    "sinon": "",
+    "chai": "",
+    "grunt-contrib-clean": "~0.5.0",
+    "grunt-mocha-test": "~0.10.2",
+    "grunt-contrib-coffee": "~0.10.1",
+    "grunt": "~0.4.5",
+    "grunt-execute": "~0.2.1",
+    "bunyan": "~0.22.3",
+    "grunt-bunyan": "~0.5.0"
+  }
 }