Merge pull request #4 from source-nerd/pyup-update-lxml-4.3.0-to-4.3.3

Update lxml to 4.3.3

Author: source-nerd

requirements.txt

@@ -6,7 +6,7 @@ chardet==3.0.4
 Click==7.0
 cssselect==1.0.3
 idna==2.8
-lxml==4.3.0
+lxml==4.3.3
 numpy==1.16.0
 pandas==0.24.2
 pyquery==1.4.0