diff --git a/src/doc_builder/external.py b/src/doc_builder/external.py
index c533769f..8e4d5be7 100644
--- a/src/doc_builder/external.py
+++ b/src/doc_builder/external.py
@@ -30,6 +30,7 @@
     "evaluate",
     "huggingface_hub",
     "optimum",
+    "peft",
     "tokenizers",
     "transformers",
     "trl",