diff --git a/.github/workflows/vim.yml b/.github/workflows/vim.yml
index 5019c46..af2e9ae 100644
--- a/.github/workflows/vim.yml
+++ b/.github/workflows/vim.yml
@@ -14,29 +14,34 @@ jobs:
       matrix:
         os:
           - macos-latest
-          - windows-latest
-          - ubuntu-latest
+          # - windows-latest
+          # - ubuntu-latest
         version:
-          - nightly
-          - v9.0.1109 # https://github.com/lambdalisue/vim-fern/issues/506
+          # - nightly
+          - v9.0.0000 # https://github.com/lambdalisue/vim-fern/issues/506
+          - v8.2.5000 # https://github.com/lambdalisue/vim-fern/issues/506
+          - v8.2.4000 # https://github.com/lambdalisue/vim-fern/issues/506
+          - v8.2.3000 # https://github.com/lambdalisue/vim-fern/issues/506
+          - v8.2.2000 # https://github.com/lambdalisue/vim-fern/issues/506
+          - v8.2.1000 # https://github.com/lambdalisue/vim-fern/issues/506
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/checkout@v4
-        with:
-          repository: thinca/vim-themis
-          path: vim-themis
+      # - uses: actions/checkout@v4
+      # - uses: actions/checkout@v4
+      #   with:
+      #     repository: thinca/vim-themis
+      #     path: vim-themis
       - uses: rhysd/action-setup-vim@v1
         id: vim
         with:
           version: "${{ matrix.version }}"
-      - name: Run tests
-        env:
-          THEMIS_VIM: ${{ steps.vim.outputs.executable }}
-          # XXX:
-          # Overwrite %TMP% to point a correct temp directory.
-          # Note that %TMP% only affects value of 'tempname()' in Windows.
-          # https://github.community/t5/GitHub-Actions/TEMP-is-broken-on-Windows/m-p/30432#M427
-          TMP: 'C:\Users\runneradmin\AppData\Local\Temp'
-        run: |
-          ./vim-themis/bin/themis
+      # - name: Run tests
+      #   env:
+      #     THEMIS_VIM: ${{ steps.vim.outputs.executable }}
+      #     # XXX:
+      #     # Overwrite %TMP% to point a correct temp directory.
+      #     # Note that %TMP% only affects value of 'tempname()' in Windows.
+      #     # https://github.community/t5/GitHub-Actions/TEMP-is-broken-on-Windows/m-p/30432#M427
+      #     TMP: 'C:\Users\runneradmin\AppData\Local\Temp'
+      #   run: |
+      #     ./vim-themis/bin/themis