diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 8e5e793..4259758
--- a/pom.xml
+++ b/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.apache.solr</groupId>
             <artifactId>solr-core</artifactId>
-            <version>4.7.2</version>
+            <version>8.8.2</version>
             <exclusions>
                 <exclusion>
                     <artifactId>guava</artifactId>