diff --git a/.github/workflows/github-pages.yml b/.github/workflows/github-pages.yml
index f511428..b84b765 100644
--- a/.github/workflows/github-pages.yml
+++ b/.github/workflows/github-pages.yml
@@ -17,8 +17,7 @@ jobs:
       - uses: actions/cache@v2
         with:
           path: ${{ steps.brew_cache.outputs.dir }}
-          key: brew-${{ hashFiles('**/Brewfile.lock.json') }}
-          restore-keys: brew-
+          key: brew-v3
       - name: Git config
         run: |
           git config user.name bot
diff --git a/Brewfile.lock.json b/Brewfile.lock.json
deleted file mode 100644
index 01b8fa6..0000000
--- a/Brewfile.lock.json
+++ /dev/null
@@ -1,55 +0,0 @@
-{
-  "entries": {
-    "brew": {
-      "mdbook": {
-        "version": "0.4.15",
-        "bottle": {
-          "rebuild": 0,
-          "root_url": "https://ghcr.io/v2/homebrew/core",
-          "files": {
-            "arm64_monterey": {
-              "cellar": ":any_skip_relocation",
-              "url": "https://ghcr.io/v2/homebrew/core/mdbook/blobs/sha256:ce829c6916e6e0e92b87fc7b50d32717e425a34daeb599e91de63e82490139c5",
-              "sha256": "ce829c6916e6e0e92b87fc7b50d32717e425a34daeb599e91de63e82490139c5"
-            },
-            "arm64_big_sur": {
-              "cellar": ":any_skip_relocation",
-              "url": "https://ghcr.io/v2/homebrew/core/mdbook/blobs/sha256:b5567150ceb34975ac1410a06d36a92652e37ededcf77bcc1487afe77b9669ec",
-              "sha256": "b5567150ceb34975ac1410a06d36a92652e37ededcf77bcc1487afe77b9669ec"
-            },
-            "monterey": {
-              "cellar": ":any_skip_relocation",
-              "url": "https://ghcr.io/v2/homebrew/core/mdbook/blobs/sha256:275537af633a8a359d7109a0777c535ae1b2e36a07566c49b021589e8a8bfcf5",
-              "sha256": "275537af633a8a359d7109a0777c535ae1b2e36a07566c49b021589e8a8bfcf5"
-            },
-            "big_sur": {
-              "cellar": ":any_skip_relocation",
-              "url": "https://ghcr.io/v2/homebrew/core/mdbook/blobs/sha256:f7ea2bc7a6bb74fade5123e1e4523e1f49addca4730b5e61d66bb13feddf2e83",
-              "sha256": "f7ea2bc7a6bb74fade5123e1e4523e1f49addca4730b5e61d66bb13feddf2e83"
-            },
-            "catalina": {
-              "cellar": ":any_skip_relocation",
-              "url": "https://ghcr.io/v2/homebrew/core/mdbook/blobs/sha256:a8a40fb27378a45e8543072fdb73036e6977d634d3d974834fa1208daca054a1",
-              "sha256": "a8a40fb27378a45e8543072fdb73036e6977d634d3d974834fa1208daca054a1"
-            },
-            "x86_64_linux": {
-              "cellar": ":any_skip_relocation",
-              "url": "https://ghcr.io/v2/homebrew/core/mdbook/blobs/sha256:7e8a47e663ef70129e878cff9c43336e37d50739847cd2222995fedd5b684bd4",
-              "sha256": "7e8a47e663ef70129e878cff9c43336e37d50739847cd2222995fedd5b684bd4"
-            }
-          }
-        }
-      }
-    }
-  },
-  "system": {
-    "linux": {
-      "Ubuntu 20.04.4 LTS (focal)": {
-        "HOMEBREW_VERSION": "3.4.0-29-gf07a44f",
-        "HOMEBREW_PREFIX": "/home/linuxbrew/.linuxbrew",
-        "Homebrew/linuxbrew-core": "708ad69a3b6b48b824cbcc0d6ad811e278aa1805",
-        "GCC": "9.3.0"
-      }
-    }
-  }
-}