diff --git a/Dockerfile b/Dockerfile
index 6779a99..a60db8b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,7 +23,7 @@ RUN ./mbutil-master/mb-util --do_compression --image_format=pbf ch.swisstopo.bas
 RUN ./mbutil-master/mb-util --do_compression --image_format=pbf ch.swisstopo.relief.vt.mbtiles /pbf/relief
 
 # Runtime image
-FROM openresty/openresty:1.21.4.3-2-jammy
+FROM openresty/openresty:1.27.1.1-2-jammy
 RUN \
     . /etc/os-release && \
     apt-get update && \
diff --git a/acceptance_tests/Pipfile b/acceptance_tests/Pipfile
index d8efa6b..bc8a026 100644
--- a/acceptance_tests/Pipfile
+++ b/acceptance_tests/Pipfile
@@ -8,7 +8,7 @@ pytest = "==6.2.5"
 c2cwsgiutils = "==4.1.4"
 boltons = "==21.0.0"
 netifaces = "==0.11.0"
-requests = "==2.27.1"
-lxml = "==4.7.1"
+requests = "==2.32.3"
+lxml = "==4.9.4"
 
 [dev-packages]
diff --git a/acceptance_tests/requirements.txt b/acceptance_tests/requirements.txt
index 9253020..1949b2c 100644
--- a/acceptance_tests/requirements.txt
+++ b/acceptance_tests/requirements.txt
@@ -1 +1 @@
-pipenv==2022.1.8
+pipenv==2022.12.19