diff --git a/.github/workflows/CICD.yml b/.github/workflows/CICD.yml
index 96511054e..80890dd9a 100644
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -111,6 +111,9 @@ jobs:
       uses: dtolnay/rust-toolchain@stable
       with:
         targets: ${{ matrix.job.target }}
+        # On windows, for now build with 1.77.2, so that it works on windows 7.
+        # When we update the MSRV again, we'll need to revisit this, and probably drop support for Win7
+        toolchain: "${{ contains(matrix.job.target, 'windows-') && '1.77.2' || 'stable' }}"
 
     - name: Install cross
       if: matrix.job.use-cross