Fix dependency definition in server/setup.py.
@@ -172,7 +172,7 @@ setup_args = dict(
"portpicker==1.1.1",
"prometheus_client==0.5.0",
"pyjwt==1.7.1",
- "pyopenssl=19.0.0", # https://github.com/google/grr/issues/704
+ "pyopenssl==19.0.0", # https://github.com/google/grr/issues/704
"python-crontab==2.0.1",
"python-debian==0.1.31",
"Werkzeug==0.11.3",
