diff --git a/.docker_files/requirements.txt b/.docker_files/requirements.txt
index b3a00f9..e8b88de 100644
--- a/.docker_files/requirements.txt
+++ b/.docker_files/requirements.txt
@@ -1,6 +1,6 @@
 git+https://github.com/numigi/aeroolib@master
 babel==2.5.3
 Genshi==0.7.5
-freezegun==0.3.10
+freezegun==1.1.0
 html2text==2018.1.9
 ddt==1.2.1