diff --git a/base/Dockerfile b/base/Dockerfile
index a68cd7b..40ab415 100644
--- a/base/Dockerfile
+++ b/base/Dockerfile
@@ -20,7 +20,7 @@ RUN \
         bzip2-dev=1.0.8-r6 \
         dpkg-dev=1.22.6-r1 \
         dpkg=1.22.6-r1 \
-        expat-dev=2.6.3-r0 \
+        expat-dev=2.6.4-r0 \
         findutils=4.9.0-r5 \
         gcc=13.2.1_git20240309-r0 \
         gdbm-dev=1.23-r1 \