diff --git a/rules/build_electricity.smk b/rules/build_electricity.smk
index bee4bd3c..a62c2816 100644
--- a/rules/build_electricity.smk
+++ b/rules/build_electricity.smk
@@ -262,8 +262,8 @@ rule build_monthly_prices:
         co2_price_raw="data/validation/emission-spot-primary-market-auction-report-2019-data.xls",
         fuel_price_raw="data/validation/energy-price-trends-xlsx-5619002.xlsx",
     output:
-        co2_price="data/validation/CO2_price_2019.csv",
-        fuel_price="data/validation/monthly_fuel_price.csv",
+        co2_price=RESOURCES + "co2_price.csv",
+        fuel_price=RESOURCES + "monthly_fuel_price.csv",
     log:
         LOGS + "build_monthly_prices.log",
     threads: 1
@@ -350,7 +350,7 @@ rule add_electricity:
         hydro_capacities=ancient("data/bundle/hydro_capacities.csv"),
         geth_hydro_capacities="data/geth2015_hydro_capacities.csv",
         unit_commitment="data/unit_commitment.csv",
-        fuel_price="data/validation/monthly_fuel_price.csv",
+        fuel_price=RESOURCES + "monthly_fuel_price.csv",
         load=RESOURCES + "load.csv",
         nuts3_shapes=RESOURCES + "nuts3_shapes.geojson",
     output:
@@ -478,7 +478,7 @@ rule prepare_network:
     input:
         RESOURCES + "networks/elec_s{simpl}_{clusters}_ec.nc",
         tech_costs=COSTS,
-        co2_price="data/validation/CO2_price_2019.csv",
+        co2_price=RESOURCES + "co2_price.csv",
     output:
         RESOURCES + "networks/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}.nc",
     log: