diff --git a/actors/core/pom.xml b/actors/core/pom.xml
index a8af42da..9d0edbe5 100644
--- a/actors/core/pom.xml
+++ b/actors/core/pom.xml
@@ -132,7 +132,7 @@ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
         <dependency>
             <groupId>org.yaml</groupId>
             <artifactId>snakeyaml</artifactId>
-            <version>1.21</version>
+            <version>1.31</version>
         </dependency>
     </dependencies>
 </project>