diff --git a/main.go b/main.go
index ce61b22..1c6c6fa 100644
--- a/main.go
+++ b/main.go
@@ -7,7 +7,6 @@ import (
 	"io/ioutil"
 	"log"
 	"net/http"
-	"strconv"
 
 	"github.com/cabify/gotoprom"
 	"github.com/prometheus/client_golang/prometheus"
@@ -77,8 +76,8 @@ type OntCovidDataByAge struct {
 			AtLeastOneDoseCumulative json.Number `json:"At least one dose_cumulative"`
 			SecondDoseCumulative     json.Number `json:"Second_dose_cumulative"`
 			TotalPopulation          json.Number `json:"Total population"`
-			PercentAtLeastOneDose    string      `json:"Percent_at_least_one_dose"`
-			PercentFullyVaccinated   string      `json:"Percent_fully_vaccinated"`
+			PercentAtLeastOneDose    json.Number `json:"Percent_at_least_one_dose"`
+			PercentFullyVaccinated   json.Number `json:"Percent_fully_vaccinated"`
 		} `json:"records"`
 		Limit int `json:"limit"`
 		Links struct {
@@ -200,11 +199,11 @@ func updateMetrics() {
 		if err != nil {
 			log.Println(err)
 		}
-		percentAtLeastOneDose, err := strconv.ParseFloat(record.PercentAtLeastOneDose, 64)
+		percentAtLeastOneDose, err := record.PercentAtLeastOneDose.Float64()
 		if err != nil {
 			log.Println(err)
 		}
-		percentFullyVaccinated, err := strconv.ParseFloat(record.PercentFullyVaccinated, 64)
+		percentFullyVaccinated, err := record.PercentFullyVaccinated.Float64()
 		if err != nil {
 			log.Println(err)
 		}