diff --git a/src/cases/FPP.jl b/src/cases/FPP.jl
index 4de63a48..a90a606f 100644
--- a/src/cases/FPP.jl
+++ b/src/cases/FPP.jl
@@ -57,8 +57,8 @@ function case_parameters(::Type{Val{:FPP}}; flux_matcher::Bool=false)::Tuple{Par
     ini.equilibrium.R0 = 4.9
     ini.equilibrium.ϵ = 0.28
     ini.equilibrium.κ = 0.8
-    ini.equilibrium.δ = 0.7
-    ini.equilibrium.ζ = 0.1
+    ini.equilibrium.δ = 0.6
+    ini.equilibrium.ζ = 0.05
     ini.equilibrium.𝚶 = 0.1
     ini.equilibrium.pressure_core = 1.e6
     ini.equilibrium.ip = 8.0e6