diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 84898e894..0a0d783f5 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -19,7 +19,7 @@ jobs:
         uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
diff --git a/.github/workflows/release-pr.yml b/.github/workflows/release-pr.yml
index bb7d3636f..6c6d54392 100644
--- a/.github/workflows/release-pr.yml
+++ b/.github/workflows/release-pr.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -164,7 +164,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
diff --git a/.github/workflows/release-tip.yml b/.github/workflows/release-tip.yml
index 992121c21..9174bb5c0 100644
--- a/.github/workflows/release-tip.yml
+++ b/.github/workflows/release-tip.yml
@@ -45,7 +45,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -221,7 +221,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7e5b8663e..ec858c991 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -37,7 +37,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -69,7 +69,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -98,7 +98,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -131,7 +131,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -150,7 +150,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -183,7 +183,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -306,7 +306,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -334,7 +334,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -359,7 +359,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -385,7 +385,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: ghostty
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"