Fix shiv build

4 jobs for develop in 5 minutes and 19 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Test
passed #277292374
python3.5

00:02:48

81.0%
passed #277292376
python3.6

00:02:34

81.0%
passed #277292377
python3.7

00:02:29

81.0%
 
  Build
passed #277292379
pyz

00:02:30