Remove spurious zero from pymatgen version

utf · utf · commit 173a06e97867 · 2019-05-09T11:51:09.000-07:00
diff --git a/requirements.txt b/requirements.txt
@@ -9,7 +9,7 @@ six==1.12.0
 pybtex==0.22.2
 ruamel.yaml==0.15.94
 pandas==0.23.4
-pymatgen==2019.05.8
+pymatgen==2019.5.8
 custodian==2019.2.10
 networkx==2.2
 pydash==4.7.3
