diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index 8d696bf38867e065339e3eb5a4b4794ee2d1f01c..e0d0cf5b321f43641edc7623193a5bc569c518f3 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -264,7 +264,7 @@ packages:
     - +opengl
   root:
     require:
-    - '@6.26.10'
+    - '@6.28.04'
     - cxxstd=17 +fftw +fortran +gdml +http -ipo +mlp +pythia8 +root7 +tmva +vc -webgui +xrootd +ssl 
   spdlog:
     require: