diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 8a61f43..fabeb05 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -33,7 +33,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install nix
-        uses: DeterminateSystems/nix-installer-action@v14
+        uses: DeterminateSystems/nix-installer-action@v15
 
       - name: Setup magic-nix-cache
         uses: DeterminateSystems/magic-nix-cache-action@main
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 34c3510..5f2019f 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -15,7 +15,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install nix
-        uses: DeterminateSystems/nix-installer-action@v14
+        uses: DeterminateSystems/nix-installer-action@v15
 
       - name: Setup magic-nix-cache
         uses: DeterminateSystems/magic-nix-cache-action@main
@@ -73,7 +73,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install nix
-        uses: DeterminateSystems/nix-installer-action@v14
+        uses: DeterminateSystems/nix-installer-action@v15
 
       - name: Setup magic-nix-cache
         uses: DeterminateSystems/magic-nix-cache-action@main