diff --git a/test/Tests.Infrastructure/GraphSon/GraphsonSupportTestBase.cs b/test/Tests.Infrastructure/GraphSon/GraphsonSupportTestBase.cs
index 5d362770e..07bdd48b3 100644
--- a/test/Tests.Infrastructure/GraphSon/GraphsonSupportTestBase.cs
+++ b/test/Tests.Infrastructure/GraphSon/GraphsonSupportTestBase.cs
@@ -120,6 +120,20 @@ public Task IList_from_typed_values() => Verify<IList<int>>("""
             ]
             """);
 
+        [Fact]
+        public Task ImmutableDictionary_with_typed_values_from_map() => Verify<ImmutableDictionary<string, int>>("""
+            [
+              {
+                "@type": "g:Map",
+                "@value":
+                [
+                  "key1", { "@type": "g:Int32", "@value": 1 },
+                  "key2", { "@type": "g:Int32", "@value": 2 }
+                ]
+              }
+            ]
+            """);
+
         [Fact]
         public Task GraphSon3ReferenceVertex() => Verify<object>(Graphson3ReferenceVertex);