From d2a1afdfc2570041e2accd368a3009350805cadd Mon Sep 17 00:00:00 2001
From: Simon Michael <simon@joyful.com>
Date: Wed, 2 Sep 2020 10:35:28 -0700
Subject: [PATCH] ;ci: mac: invalidate mac cache to work around the usual
 failure

(cf https://github.com/haskell/cabal/issues/1076#issuecomment-685879454)
---
 .github/workflows/mac.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
index bf1483eb6..aee84374e 100644
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@@ -52,9 +52,9 @@ jobs:
       uses: actions/cache@v2
       with:
         path: ~/.stack
-        key: ${{ runner.os }}-stack-global-after20200823-${{ hashFiles('**.yaml') }}
+        key: ${{ runner.os }}-stack-global-after20200902-${{ hashFiles('**.yaml') }}
         restore-keys: |
-             ${{ runner.os }}-stack-global-after20200823
+             ${{ runner.os }}-stack-global-after20200902
 
     - name: Cache stack-installed programs in ~/.local/bin
       id:   stack-programs