diff --git a/pom.xml b/pom.xml
index 93608b7..e970b85 100644
--- a/pom.xml
+++ b/pom.xml
@@ -229,7 +229,7 @@
         <dependency>
             <groupId>org.testcontainers</groupId>
             <artifactId>solr</artifactId>
-            <version>1.20.1</version>
+            <version>1.21.4</version>
         </dependency>
         <dependency>
             <groupId>com.google.protobuf</groupId>