diff --git a/gtfs-realtime-protobuf/pom.xml b/gtfs-realtime-protobuf/pom.xml
index d3c3305b9b2..dd3990207c9 100644
--- a/gtfs-realtime-protobuf/pom.xml
+++ b/gtfs-realtime-protobuf/pom.xml
@@ -11,15 +11,11 @@
     <artifactId>gtfs-realtime-protobuf</artifactId>
     <name>OpenTripPlanner - GTFS Realtime (protobuf)</name>
 
-    <properties>
-        <protobuf.version>4.28.3</protobuf.version>
-    </properties>
 
     <dependencies>
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>${protobuf.version}</version>
         </dependency>
     </dependencies>
     <build>
diff --git a/pom.xml b/pom.xml
index 4108973c7ff..98cf77db29e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,6 +73,7 @@
         <netex-java-model.version>2.0.15</netex-java-model.version>
         <siri-java-model.version>1.27</siri-java-model.version>
         <jaxb-runtime.version>4.0.5</jaxb-runtime.version>
+        <protobuf.version>4.28.3</protobuf.version>
         <!-- Other properties -->
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <GITHUB_REPOSITORY>opentripplanner/OpenTripPlanner</GITHUB_REPOSITORY>
@@ -485,7 +486,11 @@
                 <artifactId>java-snapshot-testing-junit5</artifactId>
                 <version>2.3.0</version>
             </dependency>
-
+            <dependency>
+                <groupId>com.google.protobuf</groupId>
+                <artifactId>protobuf-java</artifactId>
+                <version>${protobuf.version}</version>
+            </dependency>
         </dependencies>
     </dependencyManagement>