Pin apache avro to 1.9.1 to fix doc builds (#778)

rnpridgeon · rnpridgeon · commit b6beceb5c3d5 · 2020-02-21T13:38:23.000-05:00
diff --git a/setup.py b/setup.py
@@ -14,7 +14,7 @@
     'fastavro',
     'requests',
     'avro;python_version<"3.0"',
-    'avro-python3;python_version>"3.0"'
+    'avro-python3==1.9.1;python_version>"3.0"'
 ]
 
 TEST_REQUIRES = [
