diff --git a/.github/workflows/actionlint.yml b/.github/workflows/actionlint.yml
index 792ca13..24798c8 100644
--- a/.github/workflows/actionlint.yml
+++ b/.github/workflows/actionlint.yml
@@ -21,7 +21,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cc74566..58cbfff 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
         fetch-depth: 0
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -45,7 +45,7 @@ jobs:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
         fetch-depth: 0
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
diff --git a/.github/workflows/nix-develop.yml b/.github/workflows/nix-develop.yml
index 03138bf..efd981c 100644
--- a/.github/workflows/nix-develop.yml
+++ b/.github/workflows/nix-develop.yml
@@ -32,7 +32,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index c911c74..fbf33d0 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -23,7 +23,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -43,7 +43,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -62,7 +62,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -81,7 +81,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -100,7 +100,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -119,7 +119,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -140,7 +140,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -159,7 +159,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -179,7 +179,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -204,7 +204,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -225,7 +225,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache
@@ -244,7 +244,7 @@ jobs:
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-    - uses: cachix/cachix-action@v14
+    - uses: cachix/cachix-action@v15
       with:
         name: kenji
         # If you chose API tokens for write access OR if you have a private cache