Explicitly specify protobuf version (#140)

NeelayS · web-flow · commit 4b384ad06091 · 2022-10-01T08:51:34.000+02:00
diff --git a/requirements.txt b/requirements.txt
@@ -24,4 +24,4 @@ pandas==1.0.1
 tqdm==4.42.1
 numpy==1.21.0
 sphinx-rtd-theme==0.5.0
-
+protobuf==3.20.*
