diff --git a/docs/julia/heater_3d.jl b/docs/julia/heater_3d.jl
index 39d9a65a..48d40404 100644
--- a/docs/julia/heater_3d.jl
+++ b/docs/julia/heater_3d.jl
@@ -51,25 +51,25 @@ thermal_conductivities = [
     "core" => 90,
     "box" => 1.38,
     "clad" => 1.38,
-    "heater" => 28,
-    "via2" => 28,
-    "metal2" => 28,
-    "via1" => 28,
-    "metal3" => 28,
-    "metal3#e1" => 28,
-    "metal3#e2" => 28,
+    "heater" => 400,
+    "via2" => 400,
+    "metal2" => 400,
+    "via1" => 400,
+    "metal3" => 400,
+    "metal3#e1" => 400,
+    "metal3#e2" => 400,
 ]
 thermal_diffisitivities = [
     "core" => 90 / 711 / 2330,
-    "box" => 1.38 / 709 / 2203,
-    "clad" => 1.38 / 709 / 2203,
-    "heater" => 28 / 598 / 5240,
-    "via2" => 28 / 598 / 5240,
-    "metal2" => 28 / 598 / 5240,
-    "via1" => 28 / 598 / 5240,
-    "metal3" => 28 / 598 / 5240,
-    "metal3#e1" => 28 / 598 / 5240,
-    "metal3#e2" => 28 / 598 / 5240,
+    "box" => 1.38 / 1000 / 2650,
+    "clad" => 1.38 / 1000 / 2650,
+    "heater" => 400 / 376 / 8960,
+    "via2" => 400 / 376 / 8960,
+    "metal2" => 400 / 376 / 8960,
+    "via1" => 400 / 376 / 8960,
+    "metal3" => 400 / 376 / 8960,
+    "metal3#e1" => 400 / 376 / 8960,
+    "metal3#e2" => 400 / 376 / 8960,
 ]
 # %% [markdown]
 # First we load the mesh, get the labels, define a CellField to evaluate the constants on