diff --git a/cmd/showbridge/main.go b/cmd/showbridge/main.go
index eba1764..859c50f 100644
--- a/cmd/showbridge/main.go
+++ b/cmd/showbridge/main.go
@@ -145,7 +145,7 @@ func writeConfig(configPath string, newConfig config.Config) error {
 		return err
 	}
 
-	err = os.WriteFile(configPath, configBytes, 0644)
+	err = os.WriteFile(configPath, configBytes, 0600)
 	if err != nil {
 		return err
 	}