diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 807ffba..2bd5a07 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -26,7 +26,7 @@ jobs:
     - name: Install
       run: |
         spack -e . env depfile -o Makefile
-        make -Orecurse -j $(($(nproc) + 1)) SPACK_INSTALL_FLAGS=--no-check-signature
+        make -Orecurse -j $(($(nproc) + 1))
 
     - name: Push packages and update index
       env:
diff --git a/README.md b/README.md
index 4680d7c..3c974c8 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,7 @@ jobs:
       run: spack -e . concretize
 
     - name: Install
-      run: spack -e . install --no-check-signature
+      run: spack -e . install
 
     - name: Run
         run: ./my_view/bin/python3 -c 'print("hello world")'
@@ -125,7 +125,7 @@ jobs:
       run: spack -e . concretize
 
     - name: Install
-      run: spack -e . install --no-check-signature
+      run: spack -e . install
 
     - name: Push packages and update index
       run: spack -e . buildcache push --base-image ubuntu:22.04 --update-index local-buildcache