diff --git a/pom.xml b/pom.xml
index 96d26e99..f692fd63 100644
--- a/pom.xml
+++ b/pom.xml
@@ -160,7 +160,7 @@
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
-      <version>1.7.6</version>
+      <version>2.0.9</version>
     </dependency>
 
     <!-- NB: dependency:analyze has false warning about xml-apis:xml-apis. -->
@@ -168,14 +168,14 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-core</artifactId>
-      <version>1.2.9</version>
+      <version>1.3.13</version>
       <optional>true</optional>
     </dependency>
     <dependency>
       <!-- NB: We want this, despite warning from dependency:analyze. -->
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.2.9</version>
+      <version>1.3.13</version>
       <optional>true</optional>
     </dependency>
     <dependency>