diff --git a/deploy/Dockerfile b/deploy/Dockerfile
index aec320652..3b2046304 100644
--- a/deploy/Dockerfile
+++ b/deploy/Dockerfile
@@ -1,8 +1,9 @@
 FROM quay.io/centos/centos:stream9
 
+# FIXME #3946: jenkins-job-builder does not seem to work with urllib3 2.x
 RUN true \
  && dnf -y install git make python3-pip \
- && pip3 install jenkins-job-builder \
+ && pip3 install jenkins-job-builder 'urllib3>=1.26.15,<2' \
  && dnf -y clean all \
  && true