diff --git a/package-lock.json b/package-lock.json
index 85adb2f..a3e0e35 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,9 +25,9 @@
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     },
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-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/assertion-error-formatter/-/assertion-error-formatter-2.0.0.tgz",
-      "integrity": "sha1-F6JCicyEQIibVDGObRGH6+4tVJQ=",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/assertion-error-formatter/-/assertion-error-formatter-2.0.1.tgz",
+      "integrity": "sha512-cjC3jUCh9spkroKue5PDSKH5RFQ/KNuZJhk3GwHYmB/8qqETxLOmMdLH+ohi/VukNzxDlMvIe7zScvLoOdhb6Q==",
       "dev": true,
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@@ -36,12 +36,11 @@
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-      "version": "2.149.0",
-      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.149.0.tgz",
-      "integrity": "sha1-dvU3Iqd4C9sxkeg/J8EBCMb+mBM=",
+      "version": "2.187.0",
+      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.187.0.tgz",
+      "integrity": "sha1-BMuaMz05wJdTvz/2PsBlsysA2xg=",
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-        "crypto-browserify": "1.0.9",
         "events": "1.1.1",
         "jmespath": "0.15.0",
         "querystring": "0.2.0",
@@ -50,6 +49,13 @@
         "uuid": "3.1.0",
         "xml2js": "0.4.17",
         "xmlbuilder": "4.2.1"
+      },
+      "dependencies": {
+        "uuid": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
+          "integrity": "sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g=="
+        }
       }
     },
     "babel-runtime": {
@@ -58,8 +64,8 @@
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       "dev": true,
       "requires": {
-        "core-js": "2.5.1",
-        "regenerator-runtime": "0.11.0"
+        "core-js": "2.5.3",
+        "regenerator-runtime": "0.11.1"
       }
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@@ -138,9 +144,9 @@
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-      "version": "2.11.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.11.0.tgz",
-      "integrity": "sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ==",
+      "version": "2.13.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.13.0.tgz",
+      "integrity": "sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==",
       "dev": true
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@@ -150,9 +156,9 @@
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-      "version": "2.5.1",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.5.1.tgz",
-      "integrity": "sha1-rmh03GaTd4m4B1T/VCjfZoGcpQs=",
+      "version": "2.5.3",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.5.3.tgz",
+      "integrity": "sha1-isw4NFgk8W2DZbfJtCWRaOjtYD4=",
       "dev": true
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@@ -161,30 +167,25 @@
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       "dev": true
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-    "crypto-browserify": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/crypto-browserify/-/crypto-browserify-1.0.9.tgz",
-      "integrity": "sha1-zFRJaF37hesRyYKKzHy4erW7/MA="
-    },
     "crypto-js": {
       "version": "3.1.9-1",
       "resolved": "https://registry.npmjs.org/crypto-js/-/crypto-js-3.1.9-1.tgz",
       "integrity": "sha1-/aGedh/Ad+Af+/3G6f38WeiAbNg="
     },
     "cucumber": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/cucumber/-/cucumber-3.1.0.tgz",
-      "integrity": "sha512-DW5vY0oDTY3XtpPx8fYoKtro1JnMr7dOngZv6Ix53aJ4xhKViI/Yxbk3Q7Jaiw618/7uh1aw1RL6xKC67VyC6A==",
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/cucumber/-/cucumber-3.2.1.tgz",
+      "integrity": "sha512-04ZxLBtGeEUsuYD/AhEuv+WO/hDVi22b4FO13JdB7oiwMCLS4mF70PzUK5ww1etEivSR0ea+oKs5i5jVHwPNlA==",
       "dev": true,
       "requires": {
-        "assertion-error-formatter": "2.0.0",
+        "assertion-error-formatter": "2.0.1",
         "babel-runtime": "6.26.0",
         "bluebird": "3.5.1",
         "cli-table": "0.3.1",
         "colors": "1.1.2",
-        "commander": "2.11.0",
-        "cucumber-expressions": "5.0.3",
-        "cucumber-tag-expressions": "1.0.1",
+        "commander": "2.13.0",
+        "cucumber-expressions": "5.0.13",
+        "cucumber-tag-expressions": "1.1.1",
         "duration": "0.2.0",
         "escape-string-regexp": "1.0.5",
         "figures": "2.0.0",
@@ -206,18 +207,18 @@
       }
     },
     "cucumber-expressions": {
-      "version": "5.0.3",
-      "resolved": "https://registry.npmjs.org/cucumber-expressions/-/cucumber-expressions-5.0.3.tgz",
-      "integrity": "sha1-dJSGCv1RMJupEIj7XRr5qYl7fH4=",
+      "version": "5.0.13",
+      "resolved": "https://registry.npmjs.org/cucumber-expressions/-/cucumber-expressions-5.0.13.tgz",
+      "integrity": "sha1-8XRZfa5tLwEhKUrC6mVEMknPFYc=",
       "dev": true,
       "requires": {
         "becke-ch--regex--s0-0-v1--base--pl--lib": "1.2.0"
       }
     },
     "cucumber-tag-expressions": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/cucumber-tag-expressions/-/cucumber-tag-expressions-1.0.1.tgz",
-      "integrity": "sha1-1tPEMYCgP1+0/JV/4Tgt3OXLmsg=",
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/cucumber-tag-expressions/-/cucumber-tag-expressions-1.1.1.tgz",
+      "integrity": "sha1-f1x7cACbwrZmWRv+ZIVFeL7e6Fo=",
       "dev": true
     },
     "d": {
@@ -226,7 +227,7 @@
       "integrity": "sha1-2hhMU10Y2O57oqoim5FACfrhEwk=",
       "dev": true,
       "requires": {
-        "es5-ext": "0.10.35"
+        "es5-ext": "0.10.38"
       }
     },
     "diff": {
@@ -247,7 +248,7 @@
       "dev": true,
       "requires": {
         "d": "0.1.1",
-        "es5-ext": "0.10.35"
+        "es5-ext": "0.10.38"
       }
     },
     "error-stack-parser": {
@@ -260,9 +261,9 @@
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     "es5-ext": {
-      "version": "0.10.35",
-      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.35.tgz",
-      "integrity": "sha1-GO6FjOajxFx9eekcFfzKnsVoSU8=",
+      "version": "0.10.38",
+      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.38.tgz",
+      "integrity": "sha512-jCMyePo7AXbUESwbl8Qi01VSH2piY9s/a3rSU/5w/MlTIx8HPL1xn2InGN8ejt/xulcJgnTO7vqNtOAxzYd2Kg==",
       "dev": true,
       "requires": {
         "es6-iterator": "2.0.3",
@@ -276,7 +277,7 @@
       "dev": true,
       "requires": {
         "d": "1.0.0",
-        "es5-ext": "0.10.35",
+        "es5-ext": "0.10.38",
         "es6-symbol": "3.1.1"
       },
       "dependencies": {
@@ -286,7 +287,7 @@
           "integrity": "sha1-dUu1v+VUUdpppYuU1F9MWwRi1Y8=",
           "dev": true,
           "requires": {
-            "es5-ext": "0.10.35"
+            "es5-ext": "0.10.38"
           }
         }
       }
@@ -298,7 +299,7 @@
       "dev": true,
       "requires": {
         "d": "1.0.0",
-        "es5-ext": "0.10.35"
+        "es5-ext": "0.10.38"
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         "d": {
@@ -307,7 +308,7 @@
           "integrity": "sha1-dUu1v+VUUdpppYuU1F9MWwRi1Y8=",
           "dev": true,
           "requires": {
-            "es5-ext": "0.10.35"
+            "es5-ext": "0.10.38"
           }
         }
       }
@@ -324,9 +325,9 @@
       "integrity": "sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ="
     },
     "extsprintf": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
-      "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.4.0.tgz",
+      "integrity": "sha1-4mifjzVvrWLMplo6kcXfX5VRaS8=",
       "dev": true
     },
     "figures": {
@@ -529,9 +530,9 @@
       "integrity": "sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA="
     },
     "regenerator-runtime": {
-      "version": "0.11.0",
-      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.11.0.tgz",
-      "integrity": "sha512-/aA0kLeRb5N9K0d4fw7ooEbI+xDe+DKD499EQqygGqeS8N3xto15p09uY2xj7ixP81sNPXvRLnAQIqdVStgb1A==",
+      "version": "0.11.1",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz",
+      "integrity": "sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg==",
       "dev": true
     },
     "repeat-string": {
@@ -688,9 +689,9 @@
       "dev": true
     },
     "uuid": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
-      "integrity": "sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g=="
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.2.1.tgz",
+      "integrity": "sha512-jZnMwlb9Iku/O3smGWvZhauCf6cvvpKi4BKRiliS3cxnI+Gz9j5MEpTz2UFuXiKPJocb7gnsLHwiS05ige5BEA=="
     },
     "verror": {
       "version": "1.10.0",
@@ -700,7 +701,7 @@
       "requires": {
         "assert-plus": "1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
+        "extsprintf": "1.4.0"
       }
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     "wrappy": {
diff --git a/package.json b/package.json
index b287b9c..a586aa2 100644
--- a/package.json
+++ b/package.json
@@ -2,13 +2,13 @@
   "name": "serverless-mfa-api",
   "description": "A Serverless API for registering and validating Multi-Factor Authentication methods. Currently supports Time-based One Time Passwords (TOTP) and FIDO U2F devices (YubiKeys).",
   "dependencies": {
-    "aws-sdk": "^2.149.0",
+    "aws-sdk": "^2.187.0",
     "bcryptjs": "^2.4.3",
     "crypto-js": "^3.1.9-1",
     "qrcode": "^0.9.0",
     "speakeasy": "^2.0.0",
     "u2f": "^0.1.3",
-    "uuid": "^3.1.0"
+    "uuid": "^3.2.1"
   },
   "engines": {
     "node": ">=6.5.0 <7.0.0"
@@ -23,6 +23,6 @@
   },
   "devDependencies": {
     "assert": "^1.4.1",
-    "cucumber": "^3.1.0"
+    "cucumber": "^3.2.1"
   }
 }