diff --git a/composer.json b/composer.json
index 6673e6b..a70736f 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
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diff --git a/composer.lock b/composer.lock
index 3f55f19..6727004 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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@@ -2383,20 +2383,20 @@
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+            "version": "v3.2.1",
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-                "reference": "06f0b06043c7438959dbdeed8bb3f699a19be22e"
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-                "reference": "06f0b06043c7438959dbdeed8bb3f699a19be22e",
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+                "netresearch/jsonmapper": "^1.0 || ^2.0 || ^3.0 || ^4.0",
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@@ -2422,9 +2422,9 @@
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-                "source": "https://github.com/felixfbecker/php-advanced-json-rpc/tree/v3.2.0"
+                "source": "https://github.com/felixfbecker/php-advanced-json-rpc/tree/v3.2.1"
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-            "time": "2021-01-10T17:48:47+00:00"
+            "time": "2021-06-11T22:34:44+00:00"
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@@ -2595,16 +2595,16 @@
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+            "version": "v4.0.0",
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-                "reference": "e0f1e33a71587aca81be5cffbb9746510e1fe04e"
+                "reference": "8bbc021a8edb2e4a7ea2f8ad4fa9ec9dce2fcb8d"
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-                "reference": "e0f1e33a71587aca81be5cffbb9746510e1fe04e",
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@@ -2612,10 +2612,10 @@
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-                "php": ">=5.6"
+                "php": ">=7.1"
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@@ -2640,9 +2640,9 @@
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                 "issues": "https://github.com/cweiske/jsonmapper/issues",
-                "source": "https://github.com/cweiske/jsonmapper/tree/master"
+                "source": "https://github.com/cweiske/jsonmapper/tree/v4.0.0"
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-            "time": "2020-04-16T18:48:43+00:00"
+            "time": "2020-12-01T19:48:11+00:00"
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@@ -4123,16 +4123,16 @@
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@@ -4175,7 +4175,7 @@
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-                "source": "https://github.com/sebastianbergmann/global-state/tree/5.0.2"
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@@ -4183,7 +4183,7 @@
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-            "time": "2020-10-26T15:55:19+00:00"
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@@ -4474,16 +4474,16 @@
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@@ -4518,7 +4518,7 @@
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-                "source": "https://github.com/sebastianbergmann/type/tree/2.3.2"
+                "source": "https://github.com/sebastianbergmann/type/tree/2.3.4"
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@@ -4526,7 +4526,7 @@
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-            "time": "2021-06-04T13:02:07+00:00"
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@@ -5836,7 +5836,7 @@
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-        "php": "^7.3"
+        "php": "^7.3 || ~8.0.0"
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