diff --git a/.github/workflows/buildjet-ci.yaml b/.github/workflows/buildjet-ci.yaml
index 627fea9e..7868c2ec 100644
--- a/.github/workflows/buildjet-ci.yaml
+++ b/.github/workflows/buildjet-ci.yaml
@@ -21,7 +21,7 @@ jobs:
         with:
           submodules: true
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore and save Nix store
         uses: ./.
@@ -100,7 +100,7 @@ jobs:
               || format('git pull --rebase origin {0}', github.ref_name) 
           }}
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore Nix store - ${{ matrix.id }}
         id: restore
@@ -167,7 +167,7 @@ jobs:
                 || format('git pull --rebase origin {0}', github.ref_name) 
             }}
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore and save Nix store
         uses: ./.
@@ -243,7 +243,7 @@ jobs:
                 || format('git pull --rebase origin {0}', github.ref_name) 
             }}
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore Nix store
         uses: ./restore
@@ -311,7 +311,7 @@ jobs:
               || format('git pull --rebase origin {0}', github.ref_name) 
           }}
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore and save Nix store
         if: matrix.do-cache
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 617e920f..83481841 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -31,7 +31,7 @@ jobs:
         with:
           submodules: true
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore and save Nix store
         uses: ./.
@@ -108,7 +108,7 @@ jobs:
               || format('git pull --rebase origin {0}', github.ref_name) 
           }}
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore Nix store - ${{ matrix.id }}
         id: restore
@@ -173,7 +173,7 @@ jobs:
                 || format('git pull --rebase origin {0}', github.ref_name) 
             }}
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore and save Nix store
         uses: ./.
@@ -247,7 +247,7 @@ jobs:
                 || format('git pull --rebase origin {0}', github.ref_name) 
             }}
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore Nix store
         uses: ./restore
@@ -312,7 +312,7 @@ jobs:
               || format('git pull --rebase origin {0}', github.ref_name) 
           }}
 
-      - uses: nixbuild/nix-quick-install-action@v28
+      - uses: nixbuild/nix-quick-install-action@v29
 
       - name: Restore and save Nix store
         if: matrix.do-cache
diff --git a/nix/ci.nix b/nix/ci.nix
index b72cce04..7d036881 100644
--- a/nix/ci.nix
+++ b/nix/ci.nix
@@ -43,7 +43,7 @@ let
           }}'';
           
   nix-quick-install-action = ''
-    - uses: nixbuild/nix-quick-install-action@v28
+    - uses: nixbuild/nix-quick-install-action@v29
   '';
 in
 ''