diff --git a/Dockerfile b/Dockerfile
index f0045c1..2f7d2d7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,6 +15,7 @@ ENV S6_BEHAVIOUR_IF_STAGE2_FAILS=2
 RUN \
   echo "**** install runtime packages ****" && \
   apk add --no-cache \
+    php83-dom \
     php83-intl \
     php83-pdo_pgsql \
     php83-pdo_sqlite \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 6c8c3bb..1807c48 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -15,6 +15,7 @@ ENV S6_BEHAVIOUR_IF_STAGE2_FAILS=2
 RUN \
   echo "**** install runtime packages ****" && \
   apk add --no-cache \
+    php83-dom \
     php83-intl \
     php83-pdo_pgsql \
     php83-pdo_sqlite \