Update waf-build-v03.yml
diff --git a/.github/workflows/waf-build-v03.yml b/.github/workflows/waf-build-v03.yml
index 66ff093..4244f0f 100644
--- a/.github/workflows/waf-build-v03.yml
+++ b/.github/workflows/waf-build-v03.yml
@@ -27,6 +27,7 @@
       run: |
         git clone https://github.com/named-data/ndn-cxx.git
         cd ndn-cxx
+        git checkout ndn-cxx-0.7.1
         ./waf configure
         ./waf 
         sudo ./waf install