diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 47e54ce..9e95b4d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -148,11 +148,11 @@ jobs:
             addrmd: 32,64
             os: windows-2019
           - toolset: msvc-14.2
-            cxxstd: "14,17,latest"
+            cxxstd: "14,17,20,latest"
             addrmd: 32,64
             os: windows-2019
           - toolset: msvc-14.3
-            cxxstd: "14,17,latest"
+            cxxstd: "14,17,20,latest"
             addrmd: 32,64
             os: windows-2022
           - toolset: gcc