diff --git a/spack.yaml b/spack.yaml
index 6a1bd9177670a2f2078681f3588b68f7bd025ded..b5b50486ec7203ef776b4bcae93e873a566e732c 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -6,7 +6,7 @@ spack:
     - cmake@3.21.4
     - dawn@3_91a
     - dawncut@1_54a
-    - dd4hep@1.18 +geant4 -assimp +hepmc3 +ipo +lcio
+    - dd4hep@1.20 +geant4 -assimp +hepmc3 +ipo +lcio
     - eigen@3.4.0
     - emacs@27.2 toolkit=athena
     - fastjet@3.3.3
diff --git a/spack/packages/dd4hep/package.py b/spack/packages/dd4hep/package.py
index 6e7341e4543ec9d71eb21c0413be94fd58882da9..7e3e5d482acf93ff030b664eb42686e6737c9dfd 100644
--- a/spack/packages/dd4hep/package.py
+++ b/spack/packages/dd4hep/package.py
@@ -3,12 +3,6 @@ from spack.pkg.builtin.dd4hep import Dd4hep as BuiltinDd4hep
 
 
 class Dd4hep(BuiltinDd4hep):
-    # custom hash for the 2021-07-27 version, needed to include
-    # https://github.com/AIDASoft/DD4hep/pull/849
-    # https://github.com/AIDASoft/DD4hep/pull/851
-    patch('2021-07-27.patch', when='@1.17')
-    # patch for https://github.com/AIDASoft/DD4hep/issues/862
-    patch('0001-do-not-change-momentum-in-getParticleDirection.patch', when='@1.17:1.18')
-    # hack to fix refcount underflow
-    patch('refcount_underflow.patch', when='@1.17:')
-    patch('pdg.patch', when='@1.17:')
+    version('1.20', sha256='cf6af0c486d5c84e8c8a8e40ea16cec54d4ed78bffcef295a0eeeaedf51cab59')
+    version('1.19', sha256='d2eccf5e8402ba7dab2e1d7236e12ee4db9b1c5e4253c40a140bf35580db1d9b')
+