diff --git a/.github/workflows/dependencies.yml b/.github/workflows/dependencies.yml
deleted file mode 100644
index 77f94f2f12ba9..0000000000000
--- a/.github/workflows/dependencies.yml
+++ /dev/null
@@ -1,146 +0,0 @@
-# Automatically run `cargo update` periodically
-
----
-name: Bump dependencies in Cargo.lock
-on:
-  schedule:
-    # Run weekly
-    - cron: '0 0 * * Sun'
-  workflow_dispatch:
-    # Needed so we can run it manually
-permissions:
-  contents: read
-defaults:
-  run:
-    shell: bash
-env:
-  # So cargo doesn't complain about unstable features
-  RUSTC_BOOTSTRAP: 1
-  PR_TITLE: Weekly `cargo update`
-  PR_MESSAGE: |
-    Automation to keep dependencies in `Cargo.lock` current.
-    r? dep-bumps
-
-    The following is the output from `cargo update`:
-  COMMIT_MESSAGE: "cargo update \n\n"
-
-jobs:
-  not-waiting-on-bors:
-    if: github.repository_owner == 'rust-lang'
-    name: skip if S-waiting-on-bors
-    runs-on: ubuntu-24.04
-    steps:
-      - env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          # Fetch state and labels of PR
-          # Or exit successfully if PR does not exist
-          JSON=$(gh pr view cargo_update --repo $GITHUB_REPOSITORY --json labels,state || exit 0)
-          STATE=$(echo "$JSON" | jq -r '.state')
-          WAITING_ON_BORS=$(echo "$JSON" | jq '.labels[] | any(.name == "S-waiting-on-bors"; .)')
-
-          # Exit with error if open and S-waiting-on-bors
-          if [[ "$STATE" == "OPEN" && "$WAITING_ON_BORS" == "true" ]]; then
-            exit 1
-          fi
-
-  update:
-    if: github.repository_owner == 'rust-lang'
-    name: update dependencies
-    needs: not-waiting-on-bors
-    runs-on: ubuntu-24.04
-    steps:
-      - name: checkout the source code
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          submodules: recursive
-      - name: install the bootstrap toolchain
-        run: |
-          # Extract the stage0 version
-          TOOLCHAIN=$(awk -F= '{a[$1]=$2} END {print(a["compiler_version"] "-" a["compiler_date"])}' src/stage0)
-          # Install and set as default
-          rustup toolchain install --no-self-update --profile minimal $TOOLCHAIN
-          rustup default $TOOLCHAIN
-
-      - name: cargo update
-        run: ./src/tools/update-lockfile.sh
-
-      - name: upload Cargo.lock artifact for use in PR
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: Cargo-lock
-          path: |
-            Cargo.lock
-            library/Cargo.lock
-            src/tools/rustbook/Cargo.lock
-          retention-days: 1
-      - name: upload cargo-update log artifact for use in PR
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: cargo-updates
-          path: cargo_update.log
-          retention-days: 1
-
-  pr:
-    if: github.repository_owner == 'rust-lang'
-    name: amend PR
-    needs: update
-    runs-on: ubuntu-24.04
-    permissions:
-      contents: write
-      pull-requests: write
-    steps:
-      - name: checkout the source code
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-
-      - name: download Cargo.lock from update job
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-        with:
-          name: Cargo-lock
-      - name: download cargo-update log from update job
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-        with:
-          name: cargo-updates
-
-      - name: craft PR body and commit message
-        run: |
-          echo "${COMMIT_MESSAGE}" > commit.txt
-          cat cargo_update.log >> commit.txt
-
-          echo "${PR_MESSAGE}" > body.md
-          echo '```txt' >> body.md
-          cat cargo_update.log >> body.md
-          echo '```' >> body.md
-
-      - name: commit
-        run: |
-          git config user.name github-actions
-          git config user.email github-actions@github.com
-          git switch --force-create cargo_update
-          git add ./Cargo.lock ./library/Cargo.lock ./src/tools/rustbook/Cargo.lock
-          git commit --no-verify --file=commit.txt
-
-      - name: push
-        run: git push --no-verify --force --set-upstream origin cargo_update
-
-      - name: edit existing open pull request
-        id: edit
-        # Don't fail job if we need to open new PR
-        continue-on-error: true
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          # Exit with error if PR is closed
-          STATE=$(gh pr view cargo_update --repo $GITHUB_REPOSITORY --json state --jq '.state')
-          if [[ "$STATE" != "OPEN" ]]; then
-            exit 1
-          fi
-
-          gh pr edit cargo_update --title "${PR_TITLE}" --body-file body.md --repo $GITHUB_REPOSITORY
-
-      - name: open new pull request
-        # Only run if there wasn't an existing PR
-        if: steps.edit.outcome != 'success'
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: gh pr create --title "${PR_TITLE}" --body-file body.md --repo $GITHUB_REPOSITORY
diff --git a/src/tools/update-lockfile.sh b/src/tools/update-lockfile.sh
deleted file mode 100755
index 123481b6b681c..0000000000000
--- a/src/tools/update-lockfile.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/bash
-
-# Updates the workspaces in `.`, `library` and `src/tools/rustbook`
-# Logs are written to `cargo_update.log`
-# Used as part of regular dependency bumps
-
-set -euo pipefail
-
-printf "\ncompiler & tools dependencies:" > cargo_update.log
-# Remove first line that always just says "Updating crates.io index"
-cargo update 2>&1 | sed '/crates.io index/d' | \
-    tee -a cargo_update.log
-printf "\nlibrary dependencies:" >> cargo_update.log
-cargo update --manifest-path library/Cargo.toml 2>&1 | sed '/crates.io index/d' | \
-    tee -a cargo_update.log
-printf "\nrustbook dependencies:" >> cargo_update.log
-cargo update --manifest-path src/tools/rustbook/Cargo.toml 2>&1 | sed '/crates.io index/d' | \
-    tee -a cargo_update.log