diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 894d285e1..d73950f5f 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -72,7 +72,8 @@ requirements:
     - chevron
     - deprecation
     - flask
-    - git
+    - git  # [not win]
+    - m2w64-crt-git  # [win]
     - matplotlib-base
     - numpy >=1.13.0
     - pandas
@@ -109,6 +110,7 @@ outputs:
         - {{ pin_subpackage('yggdrasil.zmq', exact=True) }}  # [win]
         - cmake  # [not win]
         - compiler-rt  # [osx]
+        - m2w64-make  # [win]
         - make  # [not win]
         - {{ compiler('c') }}
         - {{ compiler('cxx') }}
@@ -123,6 +125,7 @@ outputs:
       run:
         - {{ pin_subpackage('yggdrasil.c', exact=True) }}
         - m2w64-gcc-fortran  # [win]
+        - m2w64-toolchain_win-64  # [win]
         - {{ compiler('fortran') }}  # [not win]
   - name: yggdrasil.r
     build:
diff --git a/utils/requirements/requirements.json b/utils/requirements/requirements.json
index 456d4f66d..6bcf64fed 100644
--- a/utils/requirements/requirements.json
+++ b/utils/requirements/requirements.json
@@ -63,9 +63,17 @@
     "deprecation",
     "flask",
     {
-      "git": {
-        "method": "conda"
-      }
+      "git": [
+        {
+          "method": "conda",
+          "os": "unix"
+        },
+        {
+          "name": "m2w64-crt-git",
+          "method": "conda",
+          "os": "win"
+        }
+      ]
     },
     {
       "hatch-fancy-pypi-readme": {
@@ -202,10 +210,17 @@
           }
         },
         {
-          "make": {
-            "method": "conda",
-            "os": "unix"
-          }
+          "make": [
+            {
+              "method": "conda",
+              "os": "unix"
+            },
+            {
+              "name": "m2w64-make",
+              "method": "conda",
+              "os": "win"
+            }
+          ]
         },
         {
           "{{ compiler('c') }}": {
@@ -246,7 +261,10 @@
             {
               "name": "m2w64-gcc-fortran",
               "os": "win",
-              "method": "conda"
+              "method": "conda",
+              "add": [
+                "m2w64-toolchain_win-64"
+              ]
             },
             {
               "name": "gfortran",
diff --git a/utils/requirements/requirements.yaml b/utils/requirements/requirements.yaml
index 647122aae..1c6198e4d 100644
--- a/utils/requirements/requirements.yaml
+++ b/utils/requirements/requirements.yaml
@@ -1,3 +1,17 @@
+# About use of m2w64 conda packages:
+#   The msmpi recipe currently requires m2w64_fortran explicitly, which
+#   has not been rebuilt since 2021, but the updated msys packages (m2-*)
+#   require m2-conda-epoch 20230914 making msmpi incompatible. The m2w64
+#   versions of git & make are used on windows to prevent conflicts
+#   between the m2w64 and other msys2 libraries installed by the
+#   non-m2w64 versions of these packages. This conflict can appear as
+#   segfaults during compilation if the non-m2w64 msys2 libraries precede
+#   the m2w64 on the PATH.
+#
+#   Once (if) msmpi is updated to use the new msys2 gfortran
+#   distribution, then the m2w64- versions should be replaced with m2-
+#   versions or the non-prefixed versions if the PATH conflicts are
+#   resolved.
 general:
   - python-build:
       flags:
@@ -37,7 +51,11 @@ general:
   - deprecation
   - flask
   - git:
-      method: conda
+      - method: conda
+        os: unix
+      - name: m2w64-crt-git
+        method: conda
+        os: win
   - hatch-fancy-pypi-readme:
       host: True
       flags:
@@ -116,8 +134,11 @@ extras:
         method: conda
         os: unix
     - make:
-        method: conda
-        os: unix
+        - method: conda
+          os: unix
+        - name: m2w64-make
+          method: conda
+          os: win
     - "{{ compiler('c') }}":
         method: conda_recipe
     - "{{ compiler('cxx') }}":
@@ -153,7 +174,7 @@ extras:
         - name: m2w64-gcc-fortran
           os: win
           method: conda
-          # add: [m2w64-toolchain_win-64]
+          add: [m2w64-toolchain_win-64]
         - name: gfortran
           method: apt
         - name: gfortran
diff --git a/utils/requirements/requirements_condaonly.txt b/utils/requirements/requirements_condaonly.txt
index 05ead2919..98b76f8b1 100644
--- a/utils/requirements/requirements_condaonly.txt
+++ b/utils/requirements/requirements_condaonly.txt
@@ -3,10 +3,13 @@ compiler-rt; platform_system == 'Darwin'  # [conda,c]
 czmq             # [conda,zmq]
 fortran-compiler; platform_system != 'Windows'  # [conda,fortran]
 ghostscript      # [conda,images]
-git              # [conda]
+git; platform_system != 'Windows'  # [conda]
 juliaup          # [conda,julia]
 lz4              # [conda,zmq]
+m2w64-crt-git; platform_system == 'Windows'  # [conda]
 m2w64-gcc-fortran; platform_system == 'Windows'  # [conda,fortran]
+m2w64-make; platform_system == 'Windows'  # [conda,c]
+m2w64-toolchain_win-64; platform_system == 'Windows'  # [conda,fortran]
 make; platform_system != 'Windows'  # [conda,c]
 matplotlib-base  # [conda]
 mpich; platform_system == 'Linux'  # [conda,mpi]