diff --git a/projects/projen.io/package.yml b/projects/projen.io/package.yml
index aeb2c3cc51..c49f04c93f 100644
--- a/projects/projen.io/package.yml
+++ b/projects/projen.io/package.yml
@@ -41,12 +41,12 @@ test:
   - git config --global user.name "Pkgx CI"
   - run:
       - projen new node --name test-project-node
-      - testfiles="package.json yarn.lock .projenrc.js"
+      - testfiles="package.json .projenrc.js"
       - for file in $testfiles; do test -f $file; done
     working-directory: node
   - run:
       - projen new typescript --name test-project-typescript
-      - testfiles="package.json yarn.lock .projenrc.ts"
+      - testfiles="package.json .projenrc.ts"
       - for file in $testfiles; do test -f $file; done
     working-directory: typescript
     # this has a strange yargs error that seems like typescript compatibility issues