diff --git a/var/spack/repos/builtin/packages/dealii/package.py b/var/spack/repos/builtin/packages/dealii/package.py
index 23f1b918c0..71fbb69df7 100644
--- a/var/spack/repos/builtin/packages/dealii/package.py
+++ b/var/spack/repos/builtin/packages/dealii/package.py
@@ -177,6 +177,7 @@ class Dealii(CMakePackage, CudaPackage):
     depends_on("arpack-ng+mpi", when="+arpack+mpi")
     depends_on("assimp", when="@9.0:+assimp")
     depends_on("cgal", when="@9.4:+cgal")
+    depends_on("cgal@5:", when="@9.5:+cgal")
     depends_on("doxygen+graphviz", when="+doc")
     depends_on("graphviz", when="+doc")
     depends_on("ginkgo", when="@9.1:+ginkgo")