Breusch-Pagan Test / p-values

Hello

I am trying to do a Breusch pagan test and I get for two regressions with different dependent variables but with the same independent variables different p-values. Actually, I thought that in the Breusch pagan test, only the independent variables matter and if they are the same in both models, then the p-value should also be the same. Am I right? Why didn't I get for both models the same p-value?

model1.1=lm(giniA~region+dummy_2009,data=fors)
model2.1=lm(giniE~region+dummy_2009,data=fors)

bptest(model1.1)
bptest(model2.1)

model1.1 --> p-value = 0.001086
model2.1 --> p-value = 3.71e-05

Thank you for your help.

Everything I know about the Breusch Pagan test I just learned from wikipedia.

With that caution in mind, you are testing for heteroscedasticity; whether the variability in the dependent variable is constant across the range of your independent variables.Changing the dependent variable would change the result.

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