diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 270ddaf..45fee71 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,12 +14,10 @@ jobs:
           #  url: https://releases.nixos.org/nix/nix-2.3.16/install
           #- name: 2.4
           #  url: https://releases.nixos.org/nix/nix-2.4/install
-          #- name: 2.5.1
-          #  url: https://releases.nixos.org/nix/nix-2.5.1/install
-          - name: 2.6.0
-            url: https://releases.nixos.org/nix/nix-2.6.0/install
-          #- name: 2.7.0pre
-          #  url: https://github.com/numtide/nix-unstable-installer/releases/download/nix-2.7.0pre20220127_558c4ee/install
+          - name: 2.7.0
+            url: https://releases.nixos.org/nix/nix-2.7.0/install
+          #- name: 2.8.0pre
+          #  url: https://github.com/numtide/nix-unstable-installer/releases/download/nix-2.8.0pre20220314_a618097/install
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2.3.5
@@ -59,12 +57,10 @@ jobs:
             url: https://releases.nixos.org/nix/nix-2.3.16/install
           - name: 2.4
             url: https://releases.nixos.org/nix/nix-2.4/install
-          - name: 2.5.1
-            url: https://releases.nixos.org/nix/nix-2.5.1/install
-          - name: 2.6.0
-            url: https://releases.nixos.org/nix/nix-2.6.0/install
-          - name: 2.7.0pre
-            url: https://github.com/numtide/nix-unstable-installer/releases/download/nix-2.7.0pre20220127_558c4ee/install
+          - name: 2.7.0
+            url: https://releases.nixos.org/nix/nix-2.7.0/install
+          - name: 2.8.0pre
+            url: https://github.com/numtide/nix-unstable-installer/releases/download/nix-2.8.0pre20220314_a618097/install
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2.3.5