diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a1a4265..96dc350 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -9,7 +9,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v18
+        uses: DeterminateSystems/nix-installer-action@v19
 
       - name: Run unit tests
         run: nix develop --command go test -v -coverprofile=coverage.txt ./...