diff --git a/bayernid-proxy-interface/pom.xml b/bayernid-proxy-interface/pom.xml
index 6d3d697eebbb7d5597e3903ee220000fa1834d3f..129f54e3fe19c2729ec468b23628364dc0f10fd5 100644
--- a/bayernid-proxy-interface/pom.xml
+++ b/bayernid-proxy-interface/pom.xml
@@ -80,7 +80,7 @@
 							<goal>run</goal>
 						</goals>
 						<configuration>
-							<protocVersion>${protobuf.version}</protocVersion>
+							<protocVersion>4.27.3</protocVersion>
 							<includeMavenTypes>direct</includeMavenTypes>
 							<outputTargets>
 								<outputTarget>