diff --git a/python-langchain-text-splitters.spec b/python-langchain-text-splitters.spec
index 0279584c35a45421f3893583d7c0780a2fd3b0ab..5f7fdeb08856409b1569860001a0c819a86c0800 100644
--- a/python-langchain-text-splitters.spec
+++ b/python-langchain-text-splitters.spec
@@ -20,6 +20,7 @@ BuildRequires:	python3-devel
 BuildRequires:	python3-setuptools
 BuildRequires:	python3-pip
 BuildRequires:	python3-wheel
+BuildRequires:  python3-pdm
 %description -n python3-langchain-text-splitters
 LangChain Text Splitters contains utilities for splitting into chunks a wide variety of text documents.