diff --git a/composer.lock b/composer.lock
index 0e40088..65385f8 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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@@ -196,16 +196,16 @@
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+            "version": "3.0.4",
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@@ -241,9 +241,9 @@
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-                "source": "https://github.com/phar-io/version/tree/3.0.3"
+                "source": "https://github.com/phar-io/version/tree/3.0.4"
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-            "time": "2020-11-30T09:21:21+00:00"
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@@ -405,16 +405,16 @@
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@@ -426,7 +426,7 @@
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-                "phpunit/phpunit": "^8.0 || ^9.0 <9.3"
+                "phpunit/phpunit": "^8.0 || ^9.0"
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@@ -466,9 +466,9 @@
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-                "source": "https://github.com/phpspec/prophecy/tree/1.12.1"
+                "source": "https://github.com/phpspec/prophecy/tree/1.12.2"
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-            "time": "2020-09-29T09:10:42+00:00"
+            "time": "2020-12-19T10:15:11+00:00"
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@@ -1595,16 +1595,16 @@
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@@ -1616,7 +1616,7 @@
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@@ -1654,7 +1654,7 @@
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+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.22.0"
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@@ -1670,7 +1670,7 @@
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-            "time": "2020-10-23T14:02:19+00:00"
+            "time": "2021-01-07T16:49:33+00:00"
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@@ -1782,7 +1782,8 @@
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+        "php": "^7.3|^8.0",
+        "ext-bcmath": "*"
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