diff --git a/Pipfile.lock b/Pipfile.lock
index 86f282a..f02169d 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -116,10 +116,10 @@
         },
         "flake8": {
             "hashes": [
-                "sha256:749dbbd6bfd0cf1318af27bf97a14e28e5ff548ef8e5b1566ccfb25a11e7c839",
-                "sha256:aadae8761ec651813c24be05c6f7b4680857ef6afaae4651a4eccaef97ce6c3b"
+                "sha256:479b1304f72536a55948cb40a32dce8bb0ffe3501e26eaf292c7e60eb5e0428d",
+                "sha256:806e034dda44114815e23c16ef92f95c91e4c71100ff52813adf7132a6ad870d"
             ],
-            "version": "==3.8.4"
+            "version": "==4.0.1"
         },
         "mccabe": {
             "hashes": [