diff --git a/druid-lookups/pom.xml b/druid-lookups/pom.xml
index 2e23c14cd..8f7f00d4e 100644
--- a/druid-lookups/pom.xml
+++ b/druid-lookups/pom.xml
@@ -15,7 +15,7 @@
 
 
     <properties>
-        <protobuf.version>3.1.0</protobuf.version>
+        <protobuf.version>3.16.3</protobuf.version>
         <flatbuffers.version>1.12.0</flatbuffers.version>
         <jackson.version>2.10.5</jackson.version>
         <caffeine.version>2.8.0</caffeine.version>