diff --git a/dockerfile b/dockerfile
index cf06902..4defc77 100644
--- a/dockerfile
+++ b/dockerfile
@@ -18,7 +18,7 @@ ARG VERSION_APT_FAM=2.7.0-17.3
 ARG VERSION_APT_LIBNET_DNS_PERL=1.29-1
 ARG VERSION_APT_LIBMAIL_TOOLS_PERL=2.21-1
 ARG VERSION_APT_OPENDKIM=2.11.0~beta2-4
-ARG VERSION_APT_POSTFIX=3.5.18-0+deb11u1
+ARG VERSION_APT_POSTFIX=3.5.25-0+deb11u1
 ARG VERSION_APT_POSTFIX_POLICYD_SPF_PYTHON=2.9.2-1+deb11u1
 ARG VERSION_APT_SPAMASSASSIN=3.4.6-1