diff --git a/requirements.txt b/requirements.txt
index 1615002..a581c42 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-poetry
-tox
-pre-commit
\ No newline at end of file
+poetry==1.1.6
+tox==3.23.1
+pre-commit==2.13.0
\ No newline at end of file