diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cc94f6fd..c6e42d0c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -39,8 +39,7 @@ jobs:
 
       - run: perl -V
 
-      # TODO It would be nice if we had a cpanfile.
-      - run: cpanm --notest --skip-satisfied Test::Simple~0.90
+      - run: cpanm --installdeps --notest --skip-satisfied .
 
       - run: perl Makefile.PL
 
diff --git a/cpanfile b/cpanfile
index fffad340..defa67f9 100644
--- a/cpanfile
+++ b/cpanfile
@@ -31,5 +31,5 @@ on "build" => sub {
     };
 
 on "test" => sub {
-    requires   "Test::More";
+    requires   "Test::More"           => "0.90";    # For done_testing()
     };