diff --git a/conf/tomcat9_deb.src b/conf/tomcat9_deb.src
index ba35364..c7cf78a 100644
--- a/conf/tomcat9_deb.src
+++ b/conf/tomcat9_deb.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://ftp.debian.org/debian/pool/main/t/tomcat9/tomcat9_9.0.31-1~deb10u4_all.deb
-SOURCE_SUM=42276CABAD11856553DD9265B8C7FBCCE245525BF80EAF180085AB74BB078619
+SOURCE_URL=https://ftp.debian.org/debian/pool/main/t/tomcat9/tomcat9_9.0.31-1~deb10u6_all.deb
+SOURCE_SUM=9fc770b3cb32bacd22e6e48ea4539985173e523545f799dc207ea4316a8402e9
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=ar
 SOURCE_IN_SUBDIR=false