diff --git a/var/spack/repos/builtin/packages/dd4hep/package.py b/var/spack/repos/builtin/packages/dd4hep/package.py
index f5129b7e89..83ae977b89 100644
--- a/var/spack/repos/builtin/packages/dd4hep/package.py
+++ b/var/spack/repos/builtin/packages/dd4hep/package.py
@@ -156,10 +156,10 @@ class Dd4hep(CMakePackage):
     depends_on("podio@0.16:", when="@1.24: +edm4hep")
     depends_on("py-pytest", type=("build", "test"))
 
-    # See https://github.com/AIDASoft/DD4hep/pull/771
+    # See https://github.com/AIDASoft/DD4hep/pull/771 and https://github.com/AIDASoft/DD4hep/pull/876
     conflicts(
-        "^cmake@3.16:3.17.0",
-        when="@1.15",
+        "^cmake@3.16:3.17.2",
+        when="@1.15:1.18",
         msg="cmake version with buggy FindPython breaks dd4hep cmake config",
     )
     conflicts("~ddrec+dddetectors", msg="Need to enable +ddrec to build +dddetectors.")