diff --git a/Pipfile b/Pipfile
index 410b41f..33a72ee 100644
--- a/Pipfile
+++ b/Pipfile
@@ -23,7 +23,7 @@ werkzeug = "==2.3.8"
 [dev-packages]
 flake8 = "==3.9.2"
 yapf = "==0.31.0"
-pre-commit = "==2.13.0"
+pre-commit = "==2.21.0"
 reuse = "==0.14.0"
 
 [requires]
diff --git a/Pipfile.lock b/Pipfile.lock
index 53f5615..8a19f0e 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "24b04bf88bb4cc35b108b48aa38fe2106600344d541806fc462d5bb71f6ee4b8"
+            "sha256": "e9a2ff021c768a5342fb2a14f94c5d7818155c97bef44881c40012e194441858"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -708,12 +708,12 @@
         },
         "pre-commit": {
             "hashes": [
-                "sha256:764972c60693dc668ba8e86eb29654ec3144501310f7198742a767bec385a378",
-                "sha256:b679d0fddd5b9d6d98783ae5f10fd0c4c59954f375b70a58cbe1ce9bcf9809a4"
+                "sha256:31ef31af7e474a8d8995027fefdfcf509b5c913ff31f2015b4ec4beb26a6f658",
+                "sha256:e2f91727039fc39a92f58a588a25b87f936de6567eed4f0e673e0507edc75bad"
             ],
             "index": "pypi",
-            "markers": "python_full_version >= '3.6.1'",
-            "version": "==2.13.0"
+            "markers": "python_version >= '3.7'",
+            "version": "==2.21.0"
         },
         "pycodestyle": {
             "hashes": [
@@ -825,14 +825,6 @@
             "markers": "python_version >= '3.8'",
             "version": "==73.0.1"
         },
-        "toml": {
-            "hashes": [
-                "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
-                "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
-            ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==0.10.2"
-        },
         "urllib3": {
             "hashes": [
                 "sha256:a448b2f64d686155468037e1ace9f2d2199776e17f0a46610480d311f73e3472",