From df7fd4724bcd8040120f93d761ec1f4962b72a55 Mon Sep 17 00:00:00 2001
From: "Achim D. Brucker" <adbrucker@0x5f.org>
Date: Mon, 17 Jun 2019 10:14:30 +0100
Subject: [PATCH] Upgraded Jenkins build to Isabelle 2018.

---
 .ci/isabelle4isadof/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.ci/isabelle4isadof/Dockerfile b/.ci/isabelle4isadof/Dockerfile
index 53aed5e..76039a8 100644
--- a/.ci/isabelle4isadof/Dockerfile
+++ b/.ci/isabelle4isadof/Dockerfile
@@ -24,7 +24,7 @@
 #
 # SPDX-License-Identifier: BSD-2-Clause
 
-FROM logicalhacking:isabelle2017
+FROM logicalhacking:isabelle2018
 
 WORKDIR /home/isabelle
 COPY thy_output.ML /home/isabelle/Isabelle/src/Pure/Thy