diff --git a/CppRuleSet.ruleset b/CppRuleSet.ruleset
index 8d9efe316b..211530994e 100644
--- a/CppRuleSet.ruleset
+++ b/CppRuleSet.ruleset
@@ -96,7 +96,7 @@
     <Rule Id="C26816" Action="Info" />
     <Rule Id="C26817" Action="Info" />
     <Rule Id="C26818" Action="Info" />
-    <Rule Id="C26819" Action="Info" />
+    <Rule Id="C26819" Action="Error" />
     <Rule Id="C26820" Action="Error" />
     <Rule Id="C26826" Action="Info" />
     <Rule Id="C26827" Action="Error" />
diff --git a/src/modules/colorPicker/ColorPicker/dllmain.cpp b/src/modules/colorPicker/ColorPicker/dllmain.cpp
index 5a1a7cdb8c..4978d4d551 100644
--- a/src/modules/colorPicker/ColorPicker/dllmain.cpp
+++ b/src/modules/colorPicker/ColorPicker/dllmain.cpp
@@ -19,6 +19,7 @@ BOOL APIENTRY DllMain(HMODULE /*hModule*/, DWORD ul_reason_for_call, LPVOID /*lp
     {
     case DLL_PROCESS_ATTACH:
         Trace::RegisterProvider();
+        [[fallthrough]];
     case DLL_THREAD_ATTACH:
     case DLL_THREAD_DETACH:
         break;
diff --git a/src/runner/main.cpp b/src/runner/main.cpp
index fa999959bb..a5493afced 100644
--- a/src/runner/main.cpp
+++ b/src/runner/main.cpp
@@ -389,6 +389,7 @@ int WINAPI WinMain(HINSTANCE /*hInstance*/, HINSTANCE /*hPrevInstance*/, LPSTR l
         case toast_notification_handler_result::exit_success:
             return 0;
         }
+        [[fallthrough]];
     case SpecialMode::ReportSuccessfulUpdate:
     {
         notifications::remove_toasts_by_tag(notifications::UPDATING_PROCESS_TOAST_TAG);