diff --git a/Pipfile.lock b/Pipfile.lock
index 1002559..26f426b 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -81,61 +81,49 @@
         },
         "coverage": {
             "hashes": [
-                "sha256:004d1880bed2d97151facef49f08e255a20ceb6f9432df75f4eef018fdd5a78c",
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-                "sha256:1aa846f56c3d49205c952d8318e76ccc2ae23303351d9270ab220004c580cfe2",
-                "sha256:217658ec7187497e3f3ebd901afdca1af062b42cfe3e0dafea4cced3983739f6",
-                "sha256:24d4a7de75446be83244eabbff746d66b9240ae020ced65d060815fac3423759",
-                "sha256:2910f4d36a6a9b4214bb7038d537f015346f413a975d57ca6b43bf23d6563b53",
-                "sha256:2949cad1c5208b8298d5686d5a85b66aae46d73eec2c3e08c817dd3513e5848a",
-                "sha256:2a3859cb82dcbda1cfd3e6f71c27081d18aa251d20a17d87d26d4cd216fb0af4",
-                "sha256:2cafbbb3af0733db200c9b5f798d18953b1a304d3f86a938367de1567f4b5bff",
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-                "sha256:f11642dddbb0253cc8853254301b51390ba0081750a8ac03f20ea8103f0c56b6"
-            ],
-            "index": "pypi",
-            "version": "==5.5"
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+                "sha256:c1a9942e282cc9d3ed522cd3e3cab081149b27ea3bda72d6f61f84eaf88c1a63",
+                "sha256:c488db059848702aff30aa1d90ef87928d4e72e4f00717343800546fdbff0a94",
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+                "sha256:cbe91bc84be4e5ef0b1480d15c7b18e29c73bdfa33e07d3725da7d18e1b0aff2",
+                "sha256:cc692c9ee18f0dd3214843779ba6b275ee4bb9b9a5745ba64265bce911aefd1a",
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+                "sha256:ceb6534fcdfb5c503affb6b1130db7b5bfc8a0f77fa34880146f7a5c117987d0",
+                "sha256:d522f1dc49127eab0bfbba4e90fa068ecff0899bbf61bf4065c790ddd6c177fe",
+                "sha256:db094a6a4ae6329ed322a8973f83630b12715654c197dd392410400a5bfa1a73",
+                "sha256:df32ee0f4935a101e4b9a5f07b617d884a531ed5666671ff6ac66d2e8e8246d8",
+                "sha256:e5af1feee71099ae2e3b086ec04f57f9950e1be9ecf6c420696fea7977b84738",
+                "sha256:e814a4a5a1d95223b08cdb0f4f57029e8eab22ffdbae2f97107aeef28554517e",
+                "sha256:f8cabc5fd0091976ab7b020f5708335033e422de25e20ddf9416bdce2b7e07d8",
+                "sha256:fbc86ae8cc129c801e7baaafe3addf3c8d49c9c1597c44bdf2d78139707c3c62"
+            ],
+            "version": "==6.3.3"
         },
         "flake8": {
             "hashes": [