diff --git a/CHANGELOG.md b/CHANGELOG.md
index 314bde9264..f6b26966b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Bumps `Fake.IO.FileSystem` from 5.23.1 to 6.0.0
 - Bumps `Microsoft.SourceLink.GitHub` from 1.0.0 to 1.1.1
 - Bumps `System.Diagnostics.DiagnosticSource` from 6.0.0 to 6.0.1
+- Bumps `System.Reactive` from 5.0.0 to 6.0.0
 
 ## [1.3.0]
 ### Added
diff --git a/tests/Tests/packages.lock.json b/tests/Tests/packages.lock.json
index a48992e88b..fc70bb0bc9 100644
--- a/tests/Tests/packages.lock.json
+++ b/tests/Tests/packages.lock.json
@@ -44,9 +44,9 @@
       },
       "System.Reactive": {
         "type": "Direct",
-        "requested": "[5.0.0, )",
-        "resolved": "5.0.0",
-        "contentHash": "erBZjkQHWL9jpasCE/0qKAryzVBJFxGHVBAvgRN1bzM0q2s1S4oYREEEL0Vb+1kA/6BKb5FjUZMp5VXmy+gzkQ=="
+        "requested": "[6.0.0, )",
+        "resolved": "6.0.0",
+        "contentHash": "31kfaW4ZupZzPsI5PVe77VhnvFF55qgma7KZr/E0iFTs6fmdhhG8j0mgEx620iLTey1EynOkEfnyTjtNEpJzGw=="
       },
       "xunit.runner.visualstudio": {
         "type": "Direct",