diff --git a/.gitignore b/.gitignore
index 7df9ceb806..395086c420 100644
--- a/.gitignore
+++ b/.gitignore
@@ -82,6 +82,9 @@ src/ifcopenshell-python/test/build
 # bonsai i18n
 src/bonsai/bonsai/translations.py
 
+# bonsai external dependencies (cloned for just ty checks)
+src/bonsai/external_dependencies/
+
 # bonsai test temp files
 src/bonsai/test/files/temp
 src/bonsai/test/files/basic.ifc.cache.blend