diff --git a/projects/previousProjects/memapLinProgDenisThesis_2Houses/pom.xml b/projects/previousProjects/memapLinProgDenisThesis_2Houses/pom.xml
index 90202206..26f8e7a5 100644
--- a/projects/previousProjects/memapLinProgDenisThesis_2Houses/pom.xml
+++ b/projects/previousProjects/memapLinProgDenisThesis_2Houses/pom.xml
@@ -43,7 +43,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>2.5.0</version>
+      <version>3.16.3</version>
     </dependency>
     <dependency>
       <groupId>org.web3j</groupId>