diff --git a/pmd/pmd_modified/pmd_modified/pmd-doc/pom.xml b/pmd/pmd_modified/pmd_modified/pmd-doc/pom.xml
index 8e06ee27..6d51b9e4 100644
--- a/pmd/pmd_modified/pmd_modified/pmd-doc/pom.xml
+++ b/pmd/pmd_modified/pmd_modified/pmd-doc/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>org.yaml</groupId>
             <artifactId>snakeyaml</artifactId>
-            <version>1.19</version>
+            <version>1.26</version>
         </dependency>
 
         <dependency>