diff --git a/.github/workflows/ci_sh_def.yml b/.github/workflows/ci_sh_def.yml
index a8791fee9..46b96e08c 100644
--- a/.github/workflows/ci_sh_def.yml
+++ b/.github/workflows/ci_sh_def.yml
@@ -165,7 +165,7 @@ jobs:
     # MSVC, but for now, this action works:
     - name: Prepare compiler environment for Windows 🐍 2.7
       if: matrix.python == 2.7 && runner.os == 'Windows'
-      uses: ilammy/msvc-dev-cmd@v1.8.0
+      uses: ilammy/msvc-dev-cmd@v1.8.1
       with:
         arch: x64
 
@@ -751,7 +751,7 @@ jobs:
       uses: jwlawson/actions-setup-cmake@v1.9
 
     - name: Prepare MSVC
-      uses: ilammy/msvc-dev-cmd@v1.8.0
+      uses: ilammy/msvc-dev-cmd@v1.8.1
       with:
         arch: x86
 
@@ -798,7 +798,7 @@ jobs:
       uses: jwlawson/actions-setup-cmake@v1.9
 
     - name: Prepare MSVC
-      uses: ilammy/msvc-dev-cmd@v1.8.0
+      uses: ilammy/msvc-dev-cmd@v1.8.1
       with:
         toolset: 14.0
 
diff --git a/.github/workflows/ci_sh_def.yml.patch b/.github/workflows/ci_sh_def.yml.patch
index 4984f2a8b..4dad0786a 100644
--- a/.github/workflows/ci_sh_def.yml.patch
+++ b/.github/workflows/ci_sh_def.yml.patch
@@ -1,5 +1,5 @@
---- ci.yml	2021-05-21 13:42:19.190272826 -0700
-+++ ci_sh_def.yml	2021-05-21 13:43:22.370288175 -0700
+--- ci.yml	2021-05-27 11:30:03.442224943 -0700
++++ ci_sh_def.yml	2021-05-27 11:30:42.672719066 -0700
 @@ -1,4 +1,15 @@
 -name: CI-SH-AVL
 +# PLEASE KEEP THIS GROUP OF FILES IN SYNC AT ALL TIMES: