diff --git a/USINGCODEX.md b/USINGCODEX.md
index a2c0f03..0825cad 100644
--- a/USINGCODEX.md
+++ b/USINGCODEX.md
@@ -101,13 +101,12 @@ Next you can run:
 ```shell
 curl --request POST \
   "http://localhost:8080/api/codex/v1/storage/request/${CID}" \
-  --header 'Content-Type: application/json' \
   --write-out '\n' \
   --data '{
   "duration": "3600",
   "reward": "1",
   "proofProbability": "5",
-  "expiry": "600",
+  "expiry": "1200",
   "nodes": 5,
   "tolerance": 2,
   "collateral": "1"
diff --git a/USINGCODEX_WIN.md b/USINGCODEX_WIN.md
index e511bc7..cc98e03 100644
--- a/USINGCODEX_WIN.md
+++ b/USINGCODEX_WIN.md
@@ -90,7 +90,7 @@ SET CID="..."
 Next you can run:
 
 ```shell
-curl --request POST --url http://localhost:8080/api/codex/v1/storage/request/%CID% --header "Content-Type: application/json" --data "{ \"duration\": \"3600\", \"reward\": \"1\", \"proofProbability\": \"5\", \"expiry\": \"600\", \"nodes\": 5, \"tolerance\": 2, \"collateral\": \"1\" }"
+curl --request POST --url http://localhost:8080/api/codex/v1/storage/request/%CID% --header "Content-Type: application/json" --data "{ \"duration\": \"3600\", \"reward\": \"1\", \"proofProbability\": \"5\", \"expiry\": \"1200\", \"nodes\": 5, \"tolerance\": 2, \"collateral\": \"1\" }"
 ```
 
 For descriptions of each parameter, please view the [Spec](https://github.com/codex-storage/nim-codex/blob/master/openapi.yaml).