diff --git a/Pipfile.lock b/Pipfile.lock
index b63c752..da9a931 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -26,10 +26,10 @@
         },
         "attrs": {
             "hashes": [
-                "sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79",
-                "sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399"
+                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
+                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
             ],
-            "version": "==19.1.0"
+            "version": "==19.3.0"
         },
         "black": {
             "hashes": [
@@ -41,10 +41,10 @@
         },
         "certifi": {
             "hashes": [
-                "sha256:046832c04d4e752f37383b628bc601a7ea7211496b4638f6514d0e5b9acc4939",
-                "sha256:945e3ba63a0b9f577b1395204e13c3a231f9bc0223888be653286534e5873695"
+                "sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3",
+                "sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"
             ],
-            "version": "==2019.6.16"
+            "version": "==2019.11.28"
         },
         "chardet": {
             "hashes": [
@@ -62,11 +62,11 @@
         },
         "docutils": {
             "hashes": [
-                "sha256:02aec4bd92ab067f6ff27a38a38a41173bf01bed8f89157768c1573f53e474a6",
-                "sha256:51e64ef2ebfb29cae1faa133b3710143496eca21c530f3f71424d77687764274",
-                "sha256:7a4bd47eaf6596e1295ecb11361139febe29b084a87bf005bf899f9a42edc3c6"
+                "sha256:6c4f696463b79f1fb8ba0c594b63840ebd41f059e92b31957c46b74a4599b6d0",
+                "sha256:9e4d7ecfc600058e07ba661411a2b7de2fd0fafa17d1a7f7361cd47b1175c827",
+                "sha256:a2aeea129088da402665e92e0b25b04b073c04b2dce4ab65caaa38b7ce2e1a99"
             ],
-            "version": "==0.14"
+            "version": "==0.15.2"
         },
         "entrypoints": {
             "hashes": [
@@ -85,11 +85,18 @@
         },
         "flit": {
             "hashes": [
-                "sha256:1d93f7a833ed8a6e120ddc40db5c4763bc39bccc75c05081ec8285ece718aefb",
-                "sha256:6f6f0fb83c51ffa3a150fa41b5ac118df9ea4a87c2c06dff4ebf9adbe7b52b36"
+                "sha256:494e0806840fe896fe31ce2a413583115324f12177ecaf7427f157caa9b9c5b2",
+                "sha256:6c954c3ec4e87a84fac55cca1a1d692a39354affa7c791eb49f6631b71ddbb40"
             ],
             "index": "pypi",
-            "version": "==1.3"
+            "version": "==2.1.0"
+        },
+        "flit-core": {
+            "hashes": [
+                "sha256:c6dff661e9e290d51084cefc38b0971d692290e8a352d0b6cec6006be764b4d1",
+                "sha256:d2ebad9351c34083c16388d1df64a6e19579affcec02bfc05746714eef9f82fb"
+            ],
+            "version": "==2.1.0"
         },
         "idna": {
             "hashes": [
@@ -129,9 +136,10 @@
         },
         "pytoml": {
             "hashes": [
-                "sha256:ca2d0cb127c938b8b76a9a0d0f855cf930c1d50cc3a0af6d3595b566519a1013"
+                "sha256:57a21e6347049f73bfb62011ff34cd72774c031b9828cb628a752225136dfc33",
+                "sha256:8eecf7c8d0adcff3b375b09fe403407aa9b645c499e5ab8cac670ac4a35f61e7"
             ],
-            "version": "==0.1.20"
+            "version": "==0.1.21"
         },
         "requests": {
             "hashes": [
@@ -149,10 +157,10 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:b246607a25ac80bedac05c6f282e3cdaf3afb65420fd024ac94435cabe6e18d1",
-                "sha256:dbe59173209418ae49d485b87d1681aefa36252ee85884c31346debd19463232"
+                "sha256:a8a318824cc77d1fd4b2bec2ded92646630d7fe8619497b142c84a9e6f5a7293",
+                "sha256:f3c5fd51747d450d4dcf6f923c81f78f811aab8205fda64b0aba34a4e48b0745"
             ],
-            "version": "==1.25.3"
+            "version": "==1.25.7"
         }
     }
 }