diff --git a/Pipfile.lock b/Pipfile.lock
index 879f1fc..2b0c204 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -3,6 +3,7 @@
         "hash": {
             "sha256": "1bc40fd5609e2ed3825882ce7e072240ef9f0fb086718c6a09e8bb5d551c08a3"
         },
+        "pipfile-spec": 6,
         "requires": {},
         "sources": [
             {
@@ -13,33 +14,27 @@
     },
     "default": {},
     "develop": {
-        "appdirs": {
-            "hash": "sha256:d8b24664561d0d34ddfaec54636d502d7cea6e29c3eaf68f3df6180863e2166e",
-            "version": "==1.4.3"
-        },
-        "packaging": {
-            "hash": "sha256:99276dc6e3a7851f32027a68f1095cd3f77c148091b092ea867a351811cfe388",
-            "version": "==16.8"
-        },
         "py": {
-            "hash": "sha256:81b5e37db3cc1052de438375605fb5d3b3e97f950f415f9143f04697c684d7eb",
-            "version": "==1.4.33"
-        },
-        "pyparsing": {
-            "hash": "sha256:fee43f17a9c4087e7ed1605bd6df994c6173c1e977d7ade7b651292fab2bd010",
-            "version": "==2.2.0"
+            "hashes": [
+                "sha256:51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719",
+                "sha256:607c53218732647dff4acdfcd50cb62615cedf612e72d1724fb1a0cc6405b378"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==1.11.0"
         },
         "pytest": {
-            "hash": "sha256:66f332ae62593b874a648b10a8cb106bfdacd2c6288ed7dec3713c3a808a6017",
+            "hashes": [
+                "sha256:66f332ae62593b874a648b10a8cb106bfdacd2c6288ed7dec3713c3a808a6017",
+                "sha256:b70696ebd1a5e6b627e7e3ac1365a4bc60aaf3495e843c1e70448966c5224cab"
+            ],
             "version": "==3.0.7"
         },
         "setuptools": {
-            "hash": "sha256:19d753940f8cdbee7548da318f8b56159aead279ef811a6efc8b8a33d89c86a4",
-            "version": "==35.0.2"
-        },
-        "six": {
-            "hash": "sha256:0ff78c403d9bccf5a425a6d31a12aa6b47f1c21ca4dc2573a7e2f32a97335eb1",
-            "version": "==1.10.0"
+            "hashes": [
+                "sha256:d0b9a8433464d5800cbe05094acf5c6d52a91bfac9b52bcfc4d41382be5d5d31",
+                "sha256:e197a19aa8ec9722928f2206f8de752def0e4c9fc6953527360d1c36d94ddb2f"
+            ],
+            "version": "==65.5.1"
         }
     }
-}
\ No newline at end of file
+}