diff --git a/Cargo.toml b/Cargo.toml
index 34e4bfd..24854fd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -73,5 +73,8 @@ shadow_unrelated = "warn"
 struct_field_names = "allow" # annoying
 module_name_repetitions = "allow" # annoying
 
+disallowed_types = "deny"
+disallowed_methods = "deny"
+
 allow_attributes_without_reason = "warn"
 pedantic = { level = "warn", priority = -1 }
diff --git a/clippy.toml b/clippy.toml
new file mode 100644
index 0000000..bb4c7e7
--- /dev/null
+++ b/clippy.toml
@@ -0,0 +1,7 @@
+disallowed-types = [
+    { path = "iced::widget::Text", reason = "with some fonts text renders as squares without advanced shaping (see #523), instead use [`crate::gui::widgets::text`]" },
+]
+
+disallowed-methods= [
+    { path = "iced::widget::text", reason = "with some fonts text renders as squares without advanced shaping (see #523), instead use [`crate::gui::widgets::text`]" },
+]