diff --git a/requirements.txt b/requirements.txt
index f6a22a0233..98485ff883 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ numpy==1.11.0
 networkx==1.11
 -e git+https://github.com/keyphact/pgoapi.git@249d3be7fbbdabc7f9adea17cbc899d6549e47a2#egg=pgoapi
 geopy==1.11.0
-protobuf==3.0.0b4
+protobuf==3.18.3
 requests==2.10.0
 s2sphere==0.2.4
 gpsoauth==0.3.0
@@ -22,3 +22,4 @@ mock==2.0.0
 timeout-decorator==0.3.2
 raven==5.23.0
 demjson==2.2.4
+setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability