diff --git a/spack.yaml b/spack.yaml
index 7bacbeaf6edbd39381d545a2e465c1a85be571d4..fd2c18d793edb2495d8586c4c2b843dfc3f0de40 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -1,6 +1,6 @@
 spack:
   specs:
-    - acts@14.1.0 +dd4hep +digitization +identification +json +tgeo +ipo +examples +fatras +geant4
+    - acts@16.0.0 +dd4hep +digitization +identification +json +tgeo +ipo +examples +fatras +geant4
     - cairo@1.16.0 +fc+ft+X+pdf+gobject
     - clhep@2.4.4.0 cxxstd=17
     - cmake@3.21.4
diff --git a/spack/packages/acts/package.py b/spack/packages/acts/package.py
new file mode 100644
index 0000000000000000000000000000000000000000..c9e2f25464f01ca6d2e56a444e1f63fd0a7afeea
--- /dev/null
+++ b/spack/packages/acts/package.py
@@ -0,0 +1,8 @@
+from spack import *
+from spack.pkg.builtin.acts import Acts as BuiltinActs
+
+
+class Acts(BuiltinActs):
+    version('16.0.0', commit='9bd86921155e708189417b5a8019add10fd5b273', submodules=True)
+    version('15.1.0', commit='a96e6db7de6075e85b6d5346bc89845eeb89b324', submodules=True)
+    version('15.0.0', commit='0fef9e0831a90e946745390882aac871b211eaac', submodules=True)