diff --git a/.ci/ci-check.py b/.ci/ci-check.py
index 3c84a577fc..c0b2cf6b00 100644
--- a/.ci/ci-check.py
+++ b/.ci/ci-check.py
@@ -84,7 +84,7 @@ def install_package(pkg: typing.Union[typing.List[str], Path]) -> typing.Generat
             "--sync",
             "--noconfirm",
             "--needed",
-            "mingw-w64-x86_64-python-pip",
+            "mingw-w64-ucrt-x86_64-python-pip",
             get_pkg_name(pkg),
         ]
         uninstall_command = [
@@ -103,7 +103,7 @@ def install_package(pkg: typing.Union[typing.List[str], Path]) -> typing.Generat
                 "--refresh",
                 "--noconfirm",
                 "--needed",
-                "mingw-w64-x86_64-python-pip",
+                "mingw-w64-ucrt-x86_64-python-pip",
                 *pkg,
             ]
             uninstall_command = [
@@ -212,7 +212,7 @@ def check_whether_we_should_run() -> bool:
         pkgname = "-".join(pkgloc.name.split("-")[:-3])
         if "-python-" in pkgname:
             return True
-        elif pkgname == "mingw-w64-x86_64-python":
+        elif pkgname == "mingw-w64-ucrt-x86_64-python":
             return False
     # now this is compilcated
     # need to find file listing in the package.
@@ -228,7 +228,7 @@ def check_whether_we_should_run() -> bool:
             with open(Path(tempdir, pkgloc.stem), "rb") as file:
                 with tarfile.open(fileobj=file, mode="r") as tar:
                     for mem in tar.getmembers():
-                        if "mingw64/lib/python" in mem.name:
+                        if "ucrt64/lib/python" in mem.name:
                             return True
     return False
 
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bddc669ffc..d889501fd9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -126,7 +126,7 @@ jobs:
       - uses: actions/download-artifact@v3
         continue-on-error: true
         with:
-          name: MINGW64-packages
+          name: UCRT64-packages
           path: C:/_/artifacts
       - name: Check whether to Run
         id: check-run
@@ -135,8 +135,8 @@ jobs:
       - uses: msys2/setup-msys2@v2
         if: steps.check-run.outputs.run == 'true'
         with:
-          msystem: MINGW64
-          install: mingw-w64-x86_64-python-pip
+          msystem: UCRT64
+          install: mingw-w64-ucrt-x86_64-python-pip
           release: false # since we aren't building anything
       - name: Add staging repo
         if: steps.check-run.outputs.run == 'true'
@@ -163,11 +163,11 @@ jobs:
         id: artifacts
         continue-on-error: true
         with:
-          name: MINGW64-packages
+          name: UCRT64-packages
           path: artifacts
       - name: Grok packages
         uses: jeremyd2019/package-grokker/grok-artifacts@main
         if: steps.artifacts.outcome == 'success'
         with:
-          repo: mingw64
+          repo: ucrt64
           path: artifacts