diff --git a/TripleExtractor/pom.xml b/TripleExtractor/pom.xml
old mode 100755
new mode 100644
index 3a73413..84f2e47
--- a/TripleExtractor/pom.xml
+++ b/TripleExtractor/pom.xml
@@ -47,7 +47,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>2.6.1</version>
+      <version>3.16.1</version>
     </dependency>
     <dependency>
       <groupId>org.apache.spark</groupId>