diff --git a/README.md b/README.md
index 6e7c166..860ce96 100644
--- a/README.md
+++ b/README.md
@@ -133,7 +133,6 @@ const ObservationKeyDummy = "dummy"
 type DummyData struct {
     Message     string    `json:"message"`
     Score       float64   `json:"score"`
-    CollectedAt time.Time `json:"collected_at"`
 }
 ```
 
@@ -197,7 +196,6 @@ func (p *dummyProvider) Collect(ctx context.Context, opts CheckerOptions) (any,
     return &DummyData{
         Message:     message,
         Score:       score,
-        CollectedAt: time.Now(),
     }, nil
 }
 ```
@@ -525,7 +523,6 @@ Response:
   "data": {
     "message": "Testing my checker!",
     "score": 73.2,
-    "collected_at": "2026-01-15T10:30:00Z"
   }
 }
 ```
@@ -537,7 +534,7 @@ curl -X POST http://localhost:8080/evaluate \
   -H "Content-Type: application/json" \
   -d '{
     "observations": {
-      "dummy": "{\"message\":\"test\",\"score\":42.5,\"collected_at\":\"2026-01-15T10:30:00Z\"}"
+      "dummy": "{\"message\":\"test\",\"score\":42.5}"
     },
     "options": {
       "warningThreshold": 50,
@@ -570,7 +567,7 @@ Status codes: `1` = OK, `3` = Warning, `4` = Critical.
 curl -X POST http://localhost:8080/report \
   -H "Content-Type: application/json" \
   -d '{
-    "data": "{\"message\":\"test\",\"score\":73.2,\"collected_at\":\"2026-01-15T10:30:00Z\"}"
+    "data": "{\"message\":\"test\",\"score\":73.2}"
   }'
 ```