diff --git a/pom.xml b/pom.xml
index 453f6bce..2920138e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -53,7 +53,7 @@
     <eddsa.version>0.3.0</eddsa.version>
     <protobuf-java.version>3.16.1</protobuf-java.version>
     <javax.annotation-api.version>1.3.2</javax.annotation-api.version>
-    <grpc.version>1.45.1</grpc.version>
+    <grpc.version>1.66.0</grpc.version>
     <netty.version>4.1.66.Final</netty.version>
 
     <maven-jar.version>3.2.0</maven-jar.version>