diff --git a/.gitignore b/.gitignore
index 9c40e5733ef..4fd165fedb3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ _build/
 !.mailmap
 # compiled python files
 *.py[co]
+__pycache__/
 # setup.py egg_info
 *.egg-info
 # emacs backup files
diff --git a/requirements.txt b/requirements.txt
index 1ef8ebd2252..626cbfb12ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,5 +37,5 @@ vatnumber==1.2
 vobject==0.9.3
 Werkzeug==0.11.11
 XlsxWriter==0.9.3
-xlwt==1.1.2
+xlwt==1.3.*
 xlrd==1.0.0