diff --git a/postorius/Dockerfile b/postorius/Dockerfile
index 8f56aa3..903db11 100644
--- a/postorius/Dockerfile
+++ b/postorius/Dockerfile
@@ -16,7 +16,7 @@ RUN set -ex \
 	&& apk add --no-cache --virtual .mailman-rundeps bash libffi \
 	   postgresql-client mysql-client py-mysqldb curl mailcap \
 	&& pip install -U Django==2.2 pip \
-	&& pip install postorius==1.3.0 \
+	&& pip install postorius==1.3.1 \
 		uwsgi \
 		psycopg2 \
 		dj-database-url \
diff --git a/web/Dockerfile b/web/Dockerfile
index be46b55..52c1dec 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -18,9 +18,9 @@ RUN set -ex \
 	   python3 py3-setuptools xapian-core xapian-bindings-python3 libffi \
 	&& python3 -m pip install -U django==2.2 pip \
 	&& python3 -m pip install mailmanclient==3.3.0 \
-		postorius==1.3.0 \
-		hyperkitty==1.3.0 \
-		django-mailman3==1.3.0 \
+		postorius==1.3.1 \
+		hyperkitty==1.3.1 \
+		django-mailman3==1.3.1 \
 		whoosh \
 		uwsgi \
 		psycopg2 \