diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 558b888..6a26fbe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ concurrency:
 jobs:
   read_msrv:
     name: Read MSRV
-    uses: actions-rust-lang/msrv/.github/workflows/msrv.yml@d3d2883c667da4f83d8af52be9f236ea3fcdd82c # v0.1.3
+    uses: actions-rust-lang/msrv/.github/workflows/msrv.yml@983d9d27da8fe8aaa47732160b7a14805004d4b2 # v0.1.3
 
   test:
     needs: read_msrv
@@ -39,24 +39,34 @@ jobs:
         with:
           persist-credentials: false
 
-      - name: Install Nix
-        uses: nixbuild/nix-quick-install-action@9f63be77f412a248c9d9a65a4c82cf066cdf8f0c # v35
-
       - name: Install Rust (${{ matrix.toolchain.name }})
+        id: rust
+        background: true
         uses: actions-rust-lang/setup-rust-toolchain@ecabd13d1c56bd1345c230e542e9144811ad706f # v2.0.0
         with:
           toolchain: ${{ matrix.toolchain.version }}
 
-      - name: Install cargo-nextest
-        uses: taiki-e/install-action@9983c65e42da123ff25d1f78505eb6de315aa172 # v2.87.20
-        with:
-          tool: cargo-nextest
+      - name: Install Nix
+        uses: nixbuild/nix-quick-install-action@9f63be77f412a248c9d9a65a4c82cf066cdf8f0c # v35
 
       - name: Enter Nix devshell
+        id: devshell
+        background: true
         uses: nicknovitski/nix-develop@9be7cfb4b10451d3390a75dc18ad0465bed4932a # v1.2.1
         with:
           arguments: .#ci
 
+      - name: Wait for Rust
+        wait: rust
+
+      - name: Install cargo-nextest
+        uses: taiki-e/install-action@9983c65e42da123ff25d1f78505eb6de315aa172 # v2.87.20
+        with:
+          tool: cargo-nextest
+
+      - name: Wait for Nix devshell
+        wait: devshell
+
       - name: Downgrade for MSRV
         if: matrix.toolchain.name == 'msrv'
         run: just downgrade-for-msrv
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 67c3a72..7227af2 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -21,24 +21,34 @@ jobs:
         with:
           persist-credentials: false
 
-      - name: Install Nix
-        uses: nixbuild/nix-quick-install-action@9f63be77f412a248c9d9a65a4c82cf066cdf8f0c # v35
-
       - name: Install Rust
+        id: rust
+        background: true
         uses: actions-rust-lang/setup-rust-toolchain@ecabd13d1c56bd1345c230e542e9144811ad706f # v2.0.0
         with:
           components: llvm-tools-preview
 
+      - name: Install Nix
+        uses: nixbuild/nix-quick-install-action@9f63be77f412a248c9d9a65a4c82cf066cdf8f0c # v35
+
       - name: Enter Nix devshell
+        id: devshell
+        background: true
         uses: nicknovitski/nix-develop@9be7cfb4b10451d3390a75dc18ad0465bed4932a # v1.2.1
         with:
           arguments: .#ci
 
+      - name: Wait for Rust
+        wait: rust
+
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@9983c65e42da123ff25d1f78505eb6de315aa172 # v2.87.20
         with:
           tool: cargo-llvm-cov
 
+      - name: Wait for Nix devshell
+        wait: devshell
+
       - name: Generate code coverage
         run: just test-coverage-codecov