diff --git a/pyproject.toml b/pyproject.toml
index eaa3b59e36..fbafaf4c96 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,6 +28,12 @@ extend-exclude = '''
 reportInvalidTypeForm = false
 disableBytesTypePromotions = true
 reportUnnecessaryTypeIgnoreComment = true
+# Pylance doesn't respect gitignore, so we have to exclude files manually here
+# to avoid VS Code slowing down.
+# https://github.com/microsoft/pylance-release/issues/5169
+exclude = [
+    "_deps",
+]
 
 # Define here general ruff settings,
 # then they will be inherited by projects' .toml files.