diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index c8c5fa7..9cf298c 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -38,3 +38,5 @@ jobs:
       run: bundle exec rubocop
     - name: Run tests
       run: bundle exec rspec
+    - name: Test against jedisct1/minisign
+      run: ./spec/verify.sh
diff --git a/spec/verify.sh b/spec/verify.sh
new file mode 100755
index 0000000..59a794b
--- /dev/null
+++ b/spec/verify.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+echo "which curl: $(which curl)"
+echo "which unzip: $(which unzip)"
+echo "which wget: $(which wget)"
+echo "OSTYPE: $OSTYPE"
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+    echo "mac"
+else
+    echo "linux"
+fi
\ No newline at end of file