diff --git a/examples/run_og_usa.py b/examples/run_og_usa.py
index 4992930..ee70f2e 100644
--- a/examples/run_og_usa.py
+++ b/examples/run_og_usa.py
@@ -62,10 +62,6 @@ def main():
         "mtry_params": d["mtry_params"],
         "mean_income_data": d["mean_income_data"],
         "frac_tax_payroll": d["frac_tax_payroll"],
-        "r_gov_shift": [-0.005],
-        "r_gov_scale": [0.0],
-        "zeta_K": [0.5],
-        "zeta_D": [0.5],
     }
     p.update_specifications(updated_params)
     # Run model
diff --git a/ogusa/ogusa_default_parameters.json b/ogusa/ogusa_default_parameters.json
index 8d827b1..3d308a1 100644
--- a/ogusa/ogusa_default_parameters.json
+++ b/ogusa/ogusa_default_parameters.json
@@ -41,7 +41,7 @@
     "world_int_rate_annual": [0.04],
     "initial_foreign_debt_ratio": 0.4,
     "zeta_D": [0.4],
-    "zeta_K": [0.1],
+    "zeta_K": [0.5],
     "tG1": 20,
     "tG2": 256,
     "alpha_T": [0.052],