diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index fe3c190992664132c22b7a28a663b41a695f90e9..2af35d83bbe049fc576ab5db6b81ea6858424eaf 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -270,7 +270,7 @@ 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
     - any_of: [+opengl +x, -opengl -x]
   spdlog: