diff --git a/Dockerfile b/Dockerfile
index e171684..7150172 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 081a4f1..0851306 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 \