Bump httpie from 0.9.3 to 1.0.3

Bumps [httpie](https://github.com/jakubroztocil/httpie) from 0.9.3 to 1.0.3.
- [Release notes](https://github.com/jakubroztocil/httpie/releases)
- [Changelog](https://github.com/jakubroztocil/httpie/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/jakubroztocil/httpie/compare/0.9.3...1.0.3)

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/requirements.txt b/requirements.txt
index 235fdb0..087ff6b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@
 django-guardian==1.4.4
 djangorestframework==3.3.3
 gunicorn==19.6.0
-httpie==0.9.3
+httpie==1.0.3
 psycopg2==2.6.1
 Pygments==2.1.3
 requests==2.10.0