diff --git a/src/monad b/src/monad
index 0ac8456bcf..1a2fa0af44 160000
--- a/src/monad
+++ b/src/monad
@@ -1 +1 @@
-Subproject commit 0ac8456bcf187604356f3d2a7af85d9396e07bd8
+Subproject commit 1a2fa0af446bf6adda0400fc54b5529afe58ef19
diff --git a/src/ps_test/test_CorePsExtensions.cs b/src/ps_test/test_CorePsExtensions.cs
new file mode 100644
index 0000000000..2a736d7f9b
--- /dev/null
+++ b/src/ps_test/test_CorePsExtensions.cs
@@ -0,0 +1,19 @@
+using Xunit;
+using System;
+using System.Management.Automation;
+
+namespace PSTests
+{
+    public static class CorePsExtensionsTests
+    {
+        [Fact]
+        public static void TestEnvironmentOSVersion()
+        {
+            // this test primarily checks that there is no exception thrown
+            // NOTE: the type name is explicitly written here to make clear what
+            //       type and function is tested
+            System.Management.Automation.Environment.OperatingSystem os = System.Management.Automation.Environment.OSVersion;
+            Assert.NotNull(os);
+        }
+    }
+}