diff --git a/requirements.txt b/requirements.txt
index c6eea8f..14d7732 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-PyYAML == 3.11
-ansicolor == 0.2.4
-chardet == 2.3.0
+PyYAML ~= 3.11
+ansicolor ~= 0.2.4
+chardet ~= 2.3.0