diff --git a/Pipfile.lock b/Pipfile.lock
index e2bdf0f..1738ced 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -285,16 +285,13 @@
         },
         "charset-normalizer": {
             "hashes": [
-                "sha256:1eecaa09422db5be9e29d7fc65664e6c33bd06f9ced7838578ba40d58bdf3721",
-                "sha256:b0b883e8e874edfdece9c28f314e3dd5badf067342e42fb162203335ae61aa2c"
+                "sha256:2842d8f5e82a1f6aa437380934d5e1cd4fcf2003b06fed6940769c164a480a45",
+                "sha256:98398a9d69ee80548c762ba991a4728bfc3836768ed226b3945908d1a688371c"
             ],
             "markers": "python_version >= '3'",
-            "version": "==2.0.9"
+            "version": "==2.0.11"
         },
         "coverage": {
-            "extras": [
-
-            ],
             "hashes": [
                 "sha256:004d1880bed2d97151facef49f08e255a20ceb6f9432df75f4eef018fdd5a78c",
                 "sha256:01d84219b5cdbfc8122223b39a954820929497a1cb1422824bb86b07b74594b6",
@@ -349,7 +346,7 @@
                 "sha256:f0b278ce10936db1a37e6954e15a3730bea96a0997c26d7fee88e6c396c2086d",
                 "sha256:f11642dddbb0253cc8853254301b51390ba0081750a8ac03f20ea8103f0c56b6"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'",
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4.0'",
             "version": "==5.5"
         },
         "coveralls": {
@@ -386,7 +383,7 @@
                 "sha256:6f62d78e2f89b4500b080fe3a81690850cd254227f27f75c3a0c491a1f351ba7",
                 "sha256:e8443a5e7a020e9d7f97f1d7d9cd17c88bcb3bc7e218bf9cf5095fe550be2951"
             ],
-            "markers": "python_version < '4' and python_full_version >= '3.6.1'",
+            "markers": "python_version < '4.0' and python_full_version >= '3.6.1'",
             "version": "==5.10.1"
         },
         "lazy-object-proxy": {
@@ -481,19 +478,19 @@
         },
         "pyparsing": {
             "hashes": [
-                "sha256:04ff808a5b90911829c55c4e26f75fa5ca8a2f5f36aa3a51f68e27033341d3e4",
-                "sha256:d9bdec0013ef1eb5a84ab39a3b3868911598afa494f5faa038647101504e2b81"
+                "sha256:18ee9022775d270c55187733956460083db60b37d0d0fb357445f3094eed3eea",
+                "sha256:a6c06a88f252e6c322f65faf8f418b16213b51bdfaece0524c1c1bc30c63c484"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==3.0.6"
+            "version": "==3.0.7"
         },
         "pytest": {
             "hashes": [
-                "sha256:131b36680866a76e6781d13f101efb86cf674ebb9762eb70d3082b6f29889e89",
-                "sha256:7310f8d27bc79ced999e760ca304d69f6ba6c6649c0b60fb0e04a4a77cacc134"
+                "sha256:42901e6bd4bd4a0e533358a86e848427a49005a3256f657c5c8f8dd35ef137a9",
+                "sha256:dad48ffda394e5ad9aa3b7d7ddf339ed502e5e365b1350e0af65f4a602344b11"
             ],
             "index": "pypi",
-            "version": "==6.2.5"
+            "version": "==7.0.0"
         },
         "pytest-cov": {
             "hashes": [
@@ -513,19 +510,19 @@
         },
         "requests": {
             "hashes": [
-                "sha256:6c1246513ecd5ecd4528a0906f910e8f0f9c6b8ec72030dc9fd154dc1a6efd24",
-                "sha256:b8aa58f8cf793ffd8782d3d8cb19e66ef36f7aba4353eec859e74678b01b07a7"
+                "sha256:68d7c56fd5a8999887728ef304a6d12edc7be74f1cfa47714fc8b414525c9a61",
+                "sha256:f22fa1e554c9ddfd16e6e41ac79759e17be9e492b3587efa038054674760e72d"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
-            "version": "==2.26.0"
+            "version": "==2.27.1"
         },
         "setuptools": {
             "hashes": [
-                "sha256:5c89b1a14a67ac5f0956f1cb0aeb7d1d3f4c8ba4e4e1ab7bf1af4933f9a2f0fe",
-                "sha256:675fcebecb43c32eb930481abf907619137547f4336206e4d673180242e1a278"
+                "sha256:07e97e2f1e5607d240454e98c75c7004560ac8417ca5ae1dbaa50811cb6cc95c",
+                "sha256:23aad87cc27f4ae704079618c1d117a71bd43d41e355f0698c35f6b1c796d26c"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==60.2.0"
+            "version": "==60.8.1"
         },
         "toml": {
             "hashes": [
@@ -535,13 +532,21 @@
             "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.10.2"
         },
+        "tomli": {
+            "hashes": [
+                "sha256:b5bde28da1fed24b9bd1d4d2b8cba62300bfb4ec9a6187a957e8ddb9434c5224",
+                "sha256:c292c34f58502a1eb2bbb9f5bbc9a5ebc37bee10ffb8c2d6bbdfa8eb13cc14e1"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==2.0.0"
+        },
         "urllib3": {
             "hashes": [
-                "sha256:4987c65554f7a2dbf30c18fd48778ef124af6fab771a377103da0585e2336ece",
-                "sha256:c4fdf4019605b6e5423637e01bc9fe4daef873709a7973e195ceba0a62bbc844"
+                "sha256:000ca7f471a233c2251c6c7023ee85305721bfdf18621ebff4fd17a8653427ed",
+                "sha256:0e7c33d9a63e7ddfcb86780aac87befc2fbddf46c58dbb487e0855f7ceec283c"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'",
-            "version": "==1.26.7"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4.0'",
+            "version": "==1.26.8"
         },
         "wrapt": {
             "hashes": [