diff --git a/.github/workflows/abi-cafe.yml b/.github/workflows/abi-cafe.yml
index 5f5510a57965..3c40555669cb 100644
--- a/.github/workflows/abi-cafe.yml
+++ b/.github/workflows/abi-cafe.yml
@@ -45,13 +45,6 @@ jobs:
       if: matrix.env.TARGET_TRIPLE == 'x86_64-pc-windows-gnu'
       run: rustup set default-host x86_64-pc-windows-gnu
 
-    - name: Use sparse cargo registry
-      run: |
-        cat >> ~/.cargo/config.toml <<EOF
-        [unstable]
-        sparse-registry = true
-        EOF
-
     - name: Prepare dependencies
       run: ./y.rs prepare
 
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 98b34c65dea5..6bee5dc2d6f4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -89,13 +89,6 @@ jobs:
         sudo apt-get update
         sudo apt-get install -y gcc-s390x-linux-gnu qemu-user
 
-    - name: Use sparse cargo registry
-      run: |
-        cat >> ~/.cargo/config.toml <<EOF
-        [unstable]
-        sparse-registry = true
-        EOF
-
     - name: Prepare dependencies
       run: ./y.rs prepare
 
@@ -137,13 +130,6 @@ jobs:
         path: ~/.cargo/bin
         key: ${{ runner.os }}-${{ matrix.env.TARGET_TRIPLE }}-cargo-bin-dir-${{ hashFiles('rust-toolchain', '**/Cargo.lock') }}
 
-    - name: Use sparse cargo registry
-      run: |
-        cat >> ~/.cargo/config.toml <<EOF
-        [unstable]
-        sparse-registry = true
-        EOF
-
     - name: Install hyperfine
       run: cargo install hyperfine || true
 
@@ -206,13 +192,6 @@ jobs:
         sudo apt-get update
         sudo apt-get install -y gcc-mingw-w64-x86-64 wine-stable
 
-    - name: Use sparse cargo registry
-      run: |
-        cat >> ~/.cargo/config.toml <<EOF
-        [unstable]
-        sparse-registry = true
-        EOF
-
     - name: Prepare dependencies
       run: ./y.rs prepare
 
diff --git a/.github/workflows/rustc.yml b/.github/workflows/rustc.yml
index 5faa8f054045..1e83cbc359cc 100644
--- a/.github/workflows/rustc.yml
+++ b/.github/workflows/rustc.yml
@@ -16,13 +16,6 @@ jobs:
         path: build/cg_clif
         key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('rust-toolchain', '**/Cargo.lock') }}
 
-    - name: Use sparse cargo registry
-      run: |
-        cat >> ~/.cargo/config.toml <<EOF
-        [unstable]
-        sparse-registry = true
-        EOF
-
     - name: Prepare dependencies
       run: ./y.rs prepare
 
@@ -40,13 +33,6 @@ jobs:
         path: build/cg_clif
         key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('rust-toolchain', '**/Cargo.lock') }}
 
-    - name: Use sparse cargo registry
-      run: |
-        cat >> ~/.cargo/config.toml <<EOF
-        [unstable]
-        sparse-registry = true
-        EOF
-
     - name: Prepare dependencies
       run: ./y.rs prepare