diff --git a/src/NzbDrone.Core.Test/HealthCheck/Checks/MonoNotNetCoreCheckFixture.cs b/src/NzbDrone.Core.Test/HealthCheck/Checks/MonoNotNetCoreCheckFixture.cs
index bb4ba066ca..6e416acc1b 100644
--- a/src/NzbDrone.Core.Test/HealthCheck/Checks/MonoNotNetCoreCheckFixture.cs
+++ b/src/NzbDrone.Core.Test/HealthCheck/Checks/MonoNotNetCoreCheckFixture.cs
@@ -18,9 +18,9 @@ public void should_return_ok_if_net_core()
 
         [Test]
         [Platform("Mono")]
-        public void should_log_warning_if_mono()
+        public void should_log_error_if_mono()
         {
-            Subject.Check().ShouldBeWarning();
+            Subject.Check().ShouldBeError();
         }
 
         [Test]
@@ -41,7 +41,7 @@ public void should_return_ok_if_otherbsd()
 
         [Test]
         [Platform("Mono")]
-        public void should_log_warning_if_freebsd()
+        public void should_log_error_if_freebsd()
         {
             Mocker.GetMock<IProcessProvider>()
                 .Setup(x => x.StartAndCapture("uname", null, null))
@@ -52,7 +52,7 @@ public void should_log_warning_if_freebsd()
                         new ProcessOutputLine(ProcessOutputLevel.Standard, "FreeBSD")
                     }
                 });
-            Subject.Check().ShouldBeWarning();
+            Subject.Check().ShouldBeError();
         }
     }
 }
diff --git a/src/NzbDrone.Core/HealthCheck/Checks/MonoNotNetCoreCheck.cs b/src/NzbDrone.Core/HealthCheck/Checks/MonoNotNetCoreCheck.cs
index da257b8d7b..e3bd1d5f3e 100644
--- a/src/NzbDrone.Core/HealthCheck/Checks/MonoNotNetCoreCheck.cs
+++ b/src/NzbDrone.Core/HealthCheck/Checks/MonoNotNetCoreCheck.cs
@@ -39,7 +39,7 @@ public override HealthCheck Check()
             }
 
             return new HealthCheck(GetType(),
-                                   HealthCheckResult.Warning,
+                                   HealthCheckResult.Error,
                                    _localizationService.GetLocalizedString("MonoNotNetCoreCheckMessage"),
                                    "#update_to_net_core_version");
         }
diff --git a/src/NzbDrone.Core/Localization/Core/en.json b/src/NzbDrone.Core/Localization/Core/en.json
index e50c880333..7eb0c4091e 100644
--- a/src/NzbDrone.Core/Localization/Core/en.json
+++ b/src/NzbDrone.Core/Localization/Core/en.json
@@ -527,7 +527,7 @@
   "MonitoredOnly": "Monitored Only",
   "MonitoredStatus": "Monitored/Status",
   "MonitorMovie": "Monitor Movie",
-  "MonoNotNetCoreCheckMessage": "Please upgrade to the .NET Core version of Radarr",
+  "MonoNotNetCoreCheckMessage": "Please upgrade to the .NET Core version of Radarr, Mono versions will not be supported in the next release. ",
   "MonoTlsCheckMessage": "Radarr Mono 4.x tls workaround still enabled, consider removing MONO_TLS_PROVIDER=legacy environment option",
   "MonoVersion": "Mono Version",
   "MonoVersionCheckNotSupportedMessage": "Currently installed Mono version {0} is no longer supported. Please upgrade Mono to version {1}.",