diff --git a/pom.xml b/pom.xml
index 4ccaa51..429f9aa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,19 +19,19 @@
         <dependency>
             <groupId>org.apache.tomcat</groupId>
             <artifactId>tomcat-util</artifactId>
-            <version>${tomcat.version}</version>
+            <version>9.0.90</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.apache.tomcat</groupId>
             <artifactId>tomcat-juli</artifactId>
-            <version>${tomcat.version}</version>
+            <version>9.0.76</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.apache.tomcat</groupId>
             <artifactId>tomcat-catalina</artifactId>
-            <version>${tomcat.version}</version>
+            <version>9.0.106</version>
             <scope>provided</scope>
         </dependency>
         <dependency>