diff --git a/requirements.txt b/requirements.txt
index f2642cd..7a1743e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
-bs4
-lxml
-PyPDF2
-reportlab
-pyyaml
+beautifulsoup4==4.12.0
+lxml==4.9.2
+PyPDF2==2.12.1
+PyYAML==5.4.1
+reportlab==3.6.12