diff --git a/spack.yaml b/spack.yaml
index d25acda10da06264da07bc85fa484101178fd115..3cc7c30d42f2aa6ad64346c5d7ddb73b4162a13c 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -1,5 +1,7 @@
 spack:
   specs:
+    # system
+    - autoconf %gcc@10.3.0
     # Notebook
     - py-jupyter %gcc@10.3.0
     - py-ipython %gcc@10.3.0