diff --git a/var/spack/repos/builtin/packages/qmcpack/package.py b/var/spack/repos/builtin/packages/qmcpack/package.py
index 4b2dbef9f74..cd6095f4f38 100644
--- a/var/spack/repos/builtin/packages/qmcpack/package.py
+++ b/var/spack/repos/builtin/packages/qmcpack/package.py
@@ -16,13 +16,14 @@ class Qmcpack(CMakePackage, CudaPackage):
     maintainers("ye-luo")
     tags = ["ecp", "ecp-apps"]
 
-    license("CC0-1.0")
+    license("NCSA", checked_by="prckent")
 
     # This download method is untrusted, and is not recommended by the
     # Spack manual. However, it is easier to maintain because github hashes
     # can occasionally change.
     # NOTE: 12/19/2017 QMCPACK 3.0.0 does not build properly with Spack.
     version("develop")
+    version("4.0.0", tag="v4.0.0", commit="0199944fb644b4798446fdfc0549c81666a4a943")
     version("3.17.1", tag="v3.17.1", commit="9d0d968139fc33f71dbf9159f526dd7b47f10a3b")
     version("3.17.0", tag="v3.17.0", commit="9049a90626d1fe3c431f55c56a7197f8a13d5fc6")
     version("3.16.0", tag="v3.16.0", commit="5b7544c40be105b0aafa1602601ccb0cf23ea547")