diff --git a/tsp/pom.xml b/tsp/pom.xml
old mode 100755
new mode 100644
index b444eea..e84896c
--- a/tsp/pom.xml
+++ b/tsp/pom.xml
@@ -16,7 +16,7 @@
         <dependency>
             <groupId>org.apache.solr</groupId>
             <artifactId>solr-core</artifactId>
-            <version>6.3.0</version>
+            <version>8.4.0</version>
         </dependency>
 		<dependency>
 			<groupId>uk.com.robust-it</groupId>