diff --git a/REtoNFA/PrintOS/pom.xml b/REtoNFA/PrintOS/pom.xml
index ffa46ef..7eee5de 100644
--- a/REtoNFA/PrintOS/pom.xml
+++ b/REtoNFA/PrintOS/pom.xml
@@ -52,7 +52,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.10.3</version>
+            <version>2.10.5.1</version>
         </dependency>
         <dependency>
             <groupId>commons-codec</groupId>