diff --git a/Pipfile.lock b/Pipfile.lock
index 6a7a3ea..ef249b1 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -70,34 +70,38 @@
         },
         "pyqt5-sip": {
             "hashes": [
-                "sha256:0a34b6596bdd28d52da3a51fa8d9bb0b287bcb605c2512aa3251b9028cc71f4d",
-                "sha256:1d65ce08a56282fb0273dd06585b8927b88d4fba71c01a54f8e2ac87ac1ed387",
-                "sha256:224e2fbb7088595940c348d168a317caa2110cbb7a5b957a8c3fc0d9296ee069",
-                "sha256:2a1153cda63f2632d3d5698f0cf29f6b1f1d5162305dc6f5b23336ad8f1039ed",
-                "sha256:2a2239d16a49ce6eaf10166a84424543111f8ebe49d3c124d02af91b01a58425",
-                "sha256:58eae636e0b1926cddec98a703319a47f671cef07d73aaa525ba421cd4adfeb5",
-                "sha256:5c19c4ad67af087e8f4411da7422391b236b941f5f0697f615c5816455d1355d",
-                "sha256:61aa60fb848d740581646603a12c2dcb8d7c4cbd2a9c476a1c891ec360ff0b87",
-                "sha256:8d9f4dc7dbae9783c5dafd66801875a2ebf9302c3addd5739f772285c1c1e91c",
-                "sha256:94c80677b1e8c92fa080e24045d54ace5e4343c4ee6d0216675cd91d6f8e122a",
-                "sha256:9b69db29571dde679908fb237784a8e7af4a2cbf1b7bb25bdb86e487210e04d2",
-                "sha256:9ef12754021bcc1246f97e00ea62b5594dd5c61192830639ab4a1640bd4b7940",
-                "sha256:b1bbe763d431d26f9565cba3e99866768761366ab6d609d2506d194882156fa7",
-                "sha256:d7b8a8f89385ad9e3da38e0123c22c0efc18005e0e2731b6b95e4c21db2049d2",
-                "sha256:e6254647fa35e1260282aeb9c32a3dd363287b9a1ffcc4f22bd27e54178e92e4",
-                "sha256:f4c294bfaf2be8004583266d4621bfd3a387e12946f548f966a7fbec91845f1b",
-                "sha256:fa3d70f370604efc67085849d3d1d3d2109faa716c520faf601d15845df64de6"
+                "sha256:0304ca9114b9817a270f67f421355075b78ff9fc25ac58ffd72c2601109d2194",
+                "sha256:0cd969be528c27bbd4755bd323dff4a79a8fdda28215364e6ce3e069cb56c2a9",
+                "sha256:2f35e82fd7ec1e1f6716e9154721c7594956a4f5bd4f826d8c6a6453833cc2f0",
+                "sha256:30e944db9abee9cc757aea16906d4198129558533eb7fadbe48c5da2bd18e0bd",
+                "sha256:34dcd29be47553d5f016ff86e89e24cbc5eebae92eb2f96fb32d2d7ba028c43c",
+                "sha256:5a011aeff89660622a6d5c3388d55a9d76932f3b82c95e82fc31abd8b1d2990d",
+                "sha256:6c1ebee60f1d2b3c70aff866b7933d8d8d7646011f7c32f9321ee88c290aa4f9",
+                "sha256:7b81382ce188d63890a0e35abe0f9bb946cabc873a31873b73583b0fc84ac115",
+                "sha256:832fd60a264de4134c2824d393320838f3ab648180c9c357ec58a74524d24507",
+                "sha256:84ba7746762bd223bed22428e8561aa267a229c28344c2d28c5d5d3f8970cffb",
+                "sha256:9312ec47cac4e33c11503bc1cbeeb0bdae619620472f38e2078c5a51020a930f",
+                "sha256:a1b8ef013086e224b8e86c93f880f776d01b59195bdfa2a8e0b23f0480678fec",
+                "sha256:a29e2ac399429d3b7738f73e9081e50783e61ac5d29344e0802d0dcd6056c5a2",
+                "sha256:b6d42250baec52a5f77de64e2951d001c5501c3a2df2179f625b241cbaec3369",
+                "sha256:bb5a87b66fc1445915104ee97f7a20a69decb42f52803e3b0795fa17ff88226c",
+                "sha256:c317ab1263e6417c498b81f5c970a9b1af7acefab1f80b4cc0f2f8e661f29fc5",
+                "sha256:c9800729badcb247765e4ffe2241549d02da1fa435b9db224845bc37c3e99cb0",
+                "sha256:c9d6d448c29dc6606bb7974696608f81f4316c8234f7c7216396ed110075e777",
+                "sha256:da9c9f1e65b9d09e73bd75befc82961b6b61b5a3b9d0a7c832168e1415f163c6",
+                "sha256:ed897c58acf4a3cdca61469daa31fe6e44c33c6c06a37c3f21fab31780b3b86a",
+                "sha256:f168f0a7f32b81bfeffdf003c36f25d81c97dee5eb67072a5183e761fe250f13"
             ],
-            "version": "==12.8.0"
+            "version": "==12.8.1"
         }
     },
     "develop": {
         "attrs": {
             "hashes": [
-                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
-                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
+                "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6",
+                "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"
             ],
-            "version": "==19.3.0"
+            "version": "==20.3.0"
         },
         "backcall": {
             "hashes": [
@@ -115,17 +119,18 @@
         },
         "importlib-metadata": {
             "hashes": [
-                "sha256:90bb658cdbbf6d1735b6341ce708fc7024a3e14e99ffdc5783edea9f9b077f83",
-                "sha256:dc15b2969b4ce36305c51eebe62d418ac7791e9a157911d58bfb1f9ccd8e2070"
+                "sha256:1cedf994a9b6885dcbb7ed40b24c332b1de3956319f4b1a0f07c0621d453accc",
+                "sha256:c9c1b6c7dbc62084f3e6a614a194eb16ded7947736c18e3300125d5c0a7a8b3c"
             ],
             "markers": "python_version < '3.8'",
-            "version": "==1.7.0"
+            "version": "==3.9.1"
         },
         "iniconfig": {
             "hashes": [
-                "sha256:aa0b40f50a00e72323cb5d41302f9c6165728fd764ac8822aa3fff00a40d56b4"
+                "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3",
+                "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"
             ],
-            "version": "==1.0.0"
+            "version": "==1.1.1"
         },
         "ipython": {
             "hashes": [
@@ -144,31 +149,31 @@
         },
         "jedi": {
             "hashes": [
-                "sha256:86ed7d9b750603e4ba582ea8edc678657fb4007894a12bcf6f4bb97892f31d20",
-                "sha256:98cc583fa0f2f8304968199b01b6b4b94f469a1f4a74c1560506ca2a211378b5"
+                "sha256:18456d83f65f400ab0c2d3319e48520420ef43b23a086fdc05dff34132f0fb93",
+                "sha256:92550a404bad8afed881a137ec9a461fed49eca661414be45059329614ed0707"
             ],
-            "version": "==0.17.2"
+            "version": "==0.18.0"
         },
         "more-itertools": {
             "hashes": [
-                "sha256:68c70cc7167bdf5c7c9d8f6954a7837089c6a36bf565383919bb595efb8a17e5",
-                "sha256:b78134b2063dd214000685165d81c154522c3ee0a1c0d4d113c80361c234c5a2"
+                "sha256:5652a9ac72209ed7df8d9c15daf4e1aa0e3d2ccd3c87f8265a0673cd9cbc9ced",
+                "sha256:c5d6da9ca3ff65220c3bfd2a8db06d698f05d4d2b9be57e1deb2be5a45019713"
             ],
-            "version": "==8.4.0"
+            "version": "==8.7.0"
         },
         "packaging": {
             "hashes": [
-                "sha256:4357f74f47b9c12db93624a82154e9b120fa8293699949152b22065d556079f8",
-                "sha256:998416ba6962ae7fbd6596850b80e17859a5753ba17c32284f67bfff33784181"
+                "sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5",
+                "sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a"
             ],
-            "version": "==20.4"
+            "version": "==20.9"
         },
         "parso": {
             "hashes": [
-                "sha256:97218d9159b2520ff45eb78028ba8b50d2bc61dcc062a9682666f2dc4bd331ea",
-                "sha256:caba44724b994a8a5e086460bb212abc5a8bc46951bf4a9a1210745953622eb9"
+                "sha256:15b00182f472319383252c18d5913b69269590616c947747bc50bf4ac768f410",
+                "sha256:8519430ad07087d4c997fda3a7918f7cfa27cb58972a8c89c2a0295a1c940e9e"
             ],
-            "version": "==0.7.1"
+            "version": "==0.8.1"
         },
         "pexpect": {
             "hashes": [
@@ -194,31 +199,32 @@
         },
         "prompt-toolkit": {
             "hashes": [
-                "sha256:563d1a4140b63ff9dd587bda9557cffb2fe73650205ab6f4383092fb882e7dc8",
-                "sha256:df7e9e63aea609b1da3a65641ceaf5bc7d05e0a04de5bd45d05dbeffbabf9e04"
+                "sha256:bf00f22079f5fadc949f42ae8ff7f05702826a97059ffcc6281036ad40ac6f04",
+                "sha256:e1b4f11b9336a28fa11810bc623c357420f69dfdb6d2dac41ca2c21a55c033bc"
             ],
-            "version": "==3.0.5"
+            "version": "==3.0.18"
         },
         "ptyprocess": {
             "hashes": [
-                "sha256:923f299cc5ad920c68f2bc0bc98b75b9f838b93b599941a6b63ddbc2476394c0",
-                "sha256:d7cc528d76e76342423ca640335bd3633420dc1366f258cb31d05e865ef5ca1f"
+                "sha256:4b41f3967fce3af57cc7e94b888626c18bf37a083e3651ca8feeb66d492fef35",
+                "sha256:5c5d0a3b48ceee0b48485e0c26037c0acd7d29765ca3fbb5cb3831d347423220"
             ],
-            "version": "==0.6.0"
+            "version": "==0.7.0"
         },
         "py": {
             "hashes": [
-                "sha256:366389d1db726cd2fcfc79732e75410e5fe4d31db13692115529d34069a043c2",
-                "sha256:9ca6883ce56b4e8da7e79ac18787889fa5206c79dcc67fb065376cd2fe03f342"
+                "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
+                "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"
             ],
-            "version": "==1.9.0"
+            "version": "==1.10.0"
         },
         "pygments": {
             "hashes": [
-                "sha256:647344a061c249a3b74e230c739f434d7ea4d8b1d5f3721bc0f3558049b38f44",
-                "sha256:ff7a40b4860b727ab48fad6360eb351cc1b33cbf9b15a0f689ca5353e9463324"
+                "sha256:bc9591213a8f0e0ca1a5e68a479b4887fdc3e75d0774e5c71c31920c427de435",
+                "sha256:df49d09b498e83c1a73128295860250b0b7edd4c723a32e9bc0d295c7c2ec337"
             ],
-            "version": "==2.6.1"
+            "index": "pypi",
+            "version": "==2.7.4"
         },
         "pyparsing": {
             "hashes": [
@@ -235,26 +241,28 @@
             "index": "pypi",
             "version": "==6.0.0"
         },
-        "six": {
+        "toml": {
             "hashes": [
-                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
-                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
+                "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
+                "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
             ],
-            "version": "==1.15.0"
+            "version": "==0.10.2"
         },
-        "toml": {
+        "traitlets": {
             "hashes": [
-                "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f",
-                "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"
+                "sha256:178f4ce988f69189f7e523337a3e11d91c786ded9360174a3d9ca83e79bc5396",
+                "sha256:69ff3f9d5351f31a7ad80443c2674b7099df13cc41fc5fa6e2f6d3b0330b0426"
             ],
-            "version": "==0.10.1"
+            "version": "==5.0.5"
         },
-        "traitlets": {
+        "typing-extensions": {
             "hashes": [
-                "sha256:70b4c6a1d9019d7b4f6846832288f86998aa3b9207c6821f3578a6a6a467fe44",
-                "sha256:d023ee369ddd2763310e4c3eae1ff649689440d4ae59d7485eb4cfbbe3e359f7"
+                "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918",
+                "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c",
+                "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"
             ],
-            "version": "==4.3.3"
+            "markers": "python_version < '3.8'",
+            "version": "==3.7.4.3"
         },
         "wcwidth": {
             "hashes": [
@@ -265,10 +273,10 @@
         },
         "zipp": {
             "hashes": [
-                "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b",
-                "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"
+                "sha256:3607921face881ba3e026887d8150cca609d517579abe052ac81fc5aeffdbd76",
+                "sha256:51cb66cc54621609dd593d1787f286ee42a5c0adbb4b29abea5a63edc3e03098"
             ],
-            "version": "==3.1.0"
+            "version": "==3.4.1"
         }
     }
 }
diff --git a/requirements.txt b/requirements.txt
index 944c4a5..2f14e7b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
--i https://pypi.org/simple
+-i https://pypi.org/simple/
 numpy==1.19.1
 pyopengl==3.1.5
-pyqt5-sip==12.8.0
+pyqt5-sip==12.8.1
 pyqt5==5.15.0