update

Pipfile.lock

 {
     "_meta": {
         "hash": {
-            "sha256": "4d78cac0ee467aa7942a08eedccbc07b9ec0f73e133d6cb8a16c51a59c92af31"
+            "sha256": "6cf40b3669e650e3be4c6c2a00a961ad1f7fb417de91dbd4f33da3e3a71821fd"
         },
         "pipfile-spec": 6,
-        "requires": {
-            "python_version": "3.6"
-        },
+        "requires": {},
         "sources": [
             {
                 "name": "pypi",
@@ -723,11 +721,11 @@
         },
         "pylint": {
             "hashes": [
-                "sha256:0edfec21270725c5aa8e8d8d06ef5666f766e0e748ed2f1ab23624727303b935",
-                "sha256:4cadcaa4f1fb19123d4baa758d9fbe6286c5b3aa513af6ea42a2d51d405db205"
+                "sha256:1d6d3622c94b4887115fe5204982eee66fdd8a951cf98635ee5caee6ec98c3ec",
+                "sha256:31142f764d2a7cd41df5196f9933b12b7ee55e73ef12204b648ad7e556c119fb"
             ],
             "index": "pypi",
-            "version": "==2.1.0"
+            "version": "==2.1.1"
         },
         "pylint-django": {
             "hashes": [
@@ -780,11 +778,11 @@
         },
         "tox": {
             "hashes": [
-                "sha256:4df108a1fcc93a7ee4ac97e1a3a1fc3d41ddd22445d518976604e2ef05025280",
-                "sha256:9f0cbcc36e08c2c4ae90d02d3d1f9a62231f974bcbc1df85e8045946d8261059"
+                "sha256:0a0f1e8e15569e6507597517aa9e890434e8cc604bf229748c877751b4498054",
+                "sha256:0b3efa8fb125c65e531619920ec904862f8b6c04a15f929ada3949e12973dbc8"
             ],
             "index": "pypi",
-            "version": "==3.1.2"
+            "version": "==3.1.3"
         },
         "typed-ast": {
             "hashes": [