diff --git a/chapters/sec1/1-3-data-access.qmd b/chapters/sec1/1-3-data-access.qmd
index ed0e1925..1829ba40 100644
--- a/chapters/sec1/1-3-data-access.qmd
+++ b/chapters/sec1/1-3-data-access.qmd
@@ -580,7 +580,7 @@ req_data = {
   "species_Gentoo": False,
   "sex_male": False
 }
-req = requests.post('http://127.0.0.1:8080/predict', json = req_data)
+req = requests.post('http://127.0.0.1:8080/predict', json = [req_data])
 res = req.json().get('predict')[0]
 ```
 
@@ -666,7 +666,7 @@ def server(input, output, session):
     @reactive.Calc
     @reactive.event(input.predict)
     def pred():
-        r = requests.post(api_url, json = vals())
+        r = requests.post(api_url, json = [vals()])
         return r.json().get('predict')[0]
 
     @output