diff --git a/var/spack/repos/builtin/packages/libspatialindex/package.py b/var/spack/repos/builtin/packages/libspatialindex/package.py
index a562bb100b1..1e3368f1c8c 100644
--- a/var/spack/repos/builtin/packages/libspatialindex/package.py
+++ b/var/spack/repos/builtin/packages/libspatialindex/package.py
@@ -13,13 +13,15 @@ class Libspatialindex(CMakePackage):
 
     license("MIT")
 
+    version("2.1.0", sha256="a04513cea04dd20ab2c9d153c14cc45692805ee496b30619103f7929f6fb81bf")
     version("1.9.3", sha256="7b44340a3edc55c11abfc453bb60f148b29f569cef9e1148583e76132e9c7379")
     version("1.8.5", sha256="93cce77269612f45287b521d5afdfb245be2b93b8b6438d92f8b9e0bdb37059d")
 
     depends_on("c", type="build")
     depends_on("cxx", type="build")
 
-    depends_on("cmake@3.5.0:", type="build")
+    depends_on("cmake@3.13:", when="@2:", type="build")
+    depends_on("cmake@3.5:", type="build")
 
     @property
     def libs(self):