diff --git a/requirements.txt b/requirements.txt
index ef09826..6c9d2ae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,5 @@
-bump2version==0.5.11
-wheel==0.33.6
-watchdog==0.9.0
-flake8==3.7.8
+wheel
+flake8==7.0.0
 tox==3.14.0
 coverage==4.5.4
 Sphinx==1.8.5