From 3dd47d279ef341f7029f284b9ac7523ad8ddac55 Mon Sep 17 00:00:00 2001
From: Mark Callow <github@callow.im>
Date: Sun, 7 Jul 2024 19:00:43 +0900
Subject: [PATCH] Try upgrading attrs.

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index ca44c62b57..8f7f176e8e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -224,6 +224,7 @@ install:
       # reuse available via `apt install reuse` is very old: 0.14.0.
       # Therefore install via pip. Version today, 2024.7.7, is 4.0.2.
       pip3 install reuse
+      pip3 install --upgrade attrs
       set +e
     fi
     if [ "$CHECK_REUSE" != "ONLY" -a "$CHECK_MKVK" != "ONLY" -a "$WASM_BUILD" != "YES" ]; then