diff --git a/Pipfile.lock b/Pipfile.lock
index 06144c8..319a0d5 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,11 +18,11 @@
     "default": {
         "httplib2": {
             "hashes": [
-                "sha256:34537dcdd5e0f2386d29e0e2c6d4a1703a3b982d34c198a5102e6e5d6194b107",
-                "sha256:409fa5509298f739b34d5a652df762cb0042507dc93f6633e306b11289d6249d"
+                "sha256:4f6988e6399a2546b525a037d56da34aed4d149bbdc0e78523018d5606c26e74",
+                "sha256:b0e1f3ed76c97380fe2485bc47f25235453b40ef33ca5921bb2897e257a49c4c"
             ],
             "index": "pypi",
-            "version": "==0.14.0"
+            "version": "==0.18.0"
         }
     },
     "develop": {}