diff --git a/requirements.txt b/requirements.txt
index bda4858..9f7c453 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-cloudflare>2
-Flask>2
-waitress>2
+cloudflare~=2.0
+Flask~=2.0
+waitress~=2.0