diff --git a/Pipfile.lock b/Pipfile.lock
index 8d44a37..85ac915 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,20 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "a935b0806a627d84b5da8860b99abffddab8c491f2c6961dd63d988f7b850cf6"
-        },
-        "host-environment-markers": {
-            "implementation_name": "cpython",
-            "implementation_version": "3.4.3",
-            "os_name": "posix",
-            "platform_machine": "x86_64",
-            "platform_python_implementation": "CPython",
-            "platform_release": "16.7.0",
-            "platform_system": "Darwin",
-            "platform_version": "Darwin Kernel Version 16.7.0: Mon Nov 13 21:56:25 PST 2017; root:xnu-3789.72.11~1/RELEASE_X86_64",
-            "python_full_version": "3.4.3",
-            "python_version": "3.4",
-            "sys_platform": "darwin"
+            "sha256": "fb2a4a9597df98d7202de26d2b81100fbddd304662ef909e772df608eed6da04"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -31,162 +18,194 @@
     "default": {
         "blessings": {
             "hashes": [
-                "sha256:26dbaf2f89c3e6dee11c10f7c0b85756ed75cf602b1bb7935b4efd8ed67a000f",
-                "sha256:466e43ff45723b272311de0437649df464b33b4daba7a54c69493212958e19c7",
-                "sha256:74919575885552e14bc24a68f8b539690bd1b5629180faa830b1a25b8c7fb6ea"
+                "sha256:98e5854d805f50a5b58ac2333411b0482516a8210f23f43308baeb58d77c157d",
+                "sha256:b1fdd7e7a675295630f9ae71527a8ebc10bfefa236b3d6aa4932ee4462c17ba3",
+                "sha256:caad5211e7ba5afe04367cdd4cfc68fa886e2e08f6f35e76b7387d2109ccea6e"
             ],
-            "version": "==1.6.1"
+            "version": "==1.7"
         },
         "bpython": {
             "hashes": [
                 "sha256:2e1466059cafbbcfd232e8e7ead821daf520bc7b2ccb02bca6a98ff8b0ef18d9",
                 "sha256:faf3ddf602bd8ad7f133011778966333b9dcefbc3100df27a200b648906f655f"
             ],
+            "index": "pypi",
             "version": "==0.16"
         },
         "certifi": {
             "hashes": [
-                "sha256:244be0d93b71e93fc0a0a479862051414d0e00e16435707e5bf5000f92e04694",
-                "sha256:5ec74291ca1136b40f0379e1128ff80e866597e4e2c1e755739a913bbc3613c0"
+                "sha256:2bbf76fd432960138b3ef6dda3dde0544f27cbf8546c458e60baf371917ba9ee",
+                "sha256:50b1e4f8446b06f41be7dd6338db18e0990601dce795c2b1686458aa7e8fa7d8"
             ],
-            "version": "==2017.11.5"
+            "version": "==2021.5.30"
         },
         "chardet": {
             "hashes": [
-                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691",
-                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae"
+                "sha256:0d6f53a15db4120f2b08c94f11e7d93d2c911ee118b6b30a04ec3ee8310179fa",
+                "sha256:f864054d66fd9118f2e67044ac8981a54775ec5b67aed0441892edb553d21da5"
             ],
-            "version": "==3.0.4"
+            "version": "==4.0.0"
         },
         "curtsies": {
             "hashes": [
-                "sha256:8af7b0df83270a8d53c972b3436b7ac7813ffca27e6301c53b788372e3d862c2",
-                "sha256:ec4639df654357944c201abd0d791d9dfd3ac27ce4f90ba1c2991aaf07af92ee"
+                "sha256:068db8e5d8a2f23b765d648a66dfa9445cf2412177126ae946a7357ade992640",
+                "sha256:4ca543998d8bbba7185db099f8b7bb30baeb47426f7ac1a271e4d9ca8bbb2b05"
             ],
-            "version": "==0.2.11"
+            "version": "==0.3.4"
         },
         "greenlet": {
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-            "version": "==0.4.12"
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         },
         "idna": {
             "hashes": [
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         "numpy": {
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