diff --git a/requirements.txt b/requirements.txt
index 2728f7b..aa13b5f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 -i https://pypi.org/simple
+-e .
 certifi==2019.6.16
 chardet==3.0.4
 idna==2.8
@@ -7,7 +8,7 @@ pandas==0.25.0
 pycountry==19.7.15
 python-dateutil==2.8.0
 python-stdnum==1.11
-pytz==2019.1
+pytz==2019.2
 requests-cache==0.5.0
 requests==2.22.0
 six==1.12.0