diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..a3e9182
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,4 @@
+[*.cs]
+
+# Default severity for analyzer diagnostics with category 'CodeQuality'
+dotnet_analyzer_diagnostic.category-CodeQuality.severity = error