diff --git a/spack/packages/dd4hep/package.py b/spack/packages/dd4hep/package.py
index 8deda9a19dcd32f9fd577ab25582a9b7370e0efc..8eece4002cbe7d21f38410bfa47555866e91caff 100644
--- a/spack/packages/dd4hep/package.py
+++ b/spack/packages/dd4hep/package.py
@@ -24,7 +24,7 @@ class Dd4hep(CMakePackage):
     tags = ['hep']
 
     version('master', branch='master')
-    version('2021-07-27', commit='f2da87ba9366e5ad1a4ff0369788d61e05c62dd0', sha256='036a9908aaf1e13eaf5f2f43b6f5f4a8bdda8183ddc5befa77a4448dbb485826')
+    version('2021-07-27', commit='f2da87ba9366e5ad1a4ff0369788d61e05c62dd0')
     version('1.17', sha256='036a9908aaf1e13eaf5f2f43b6f5f4a8bdda8183ddc5befa77a4448dbb485826')
     version('1.16.1', sha256='c8b1312aa88283986f89cc008d317b3476027fd146fdb586f9f1fbbb47763f1a')
     version('1.16', sha256='ea9755cd255cf1b058e0e3cd743101ca9ca5ff79f4c60be89f9ba72b1ae5ec69')