diff --git a/tests/upstream/json-specs/error.json b/tests/upstream/json-specs/error.json
index 23822f3ab..1a421afc1 100644
--- a/tests/upstream/json-specs/error.json
+++ b/tests/upstream/json-specs/error.json
@@ -355,14 +355,14 @@
               "description": "DecodedBodySize holds the size of the decoded payload.",
               "type": [
                 "null",
-                "number"
+                "integer"
               ]
             },
             "encoded_body_size": {
               "description": "EncodedBodySize holds the size of the encoded payload.",
               "type": [
                 "null",
-                "number"
+                "integer"
               ]
             },
             "finished": {
@@ -410,7 +410,7 @@
               "description": "TransferSize holds the total size of the payload.",
               "type": [
                 "null",
-                "number"
+                "integer"
               ]
             }
           }
diff --git a/tests/upstream/json-specs/span.json b/tests/upstream/json-specs/span.json
index 9bbf4bc64..be90dad6c 100644
--- a/tests/upstream/json-specs/span.json
+++ b/tests/upstream/json-specs/span.json
@@ -192,14 +192,14 @@
                   "description": "DecodedBodySize holds the size of the decoded payload.",
                   "type": [
                     "null",
-                    "number"
+                    "integer"
                   ]
                 },
                 "encoded_body_size": {
                   "description": "EncodedBodySize holds the size of the encoded payload.",
                   "type": [
                     "null",
-                    "number"
+                    "integer"
                   ]
                 },
                 "headers": {
@@ -233,7 +233,7 @@
                   "description": "TransferSize holds the total size of the payload.",
                   "type": [
                     "null",
-                    "number"
+                    "integer"
                   ]
                 }
               }
diff --git a/tests/upstream/json-specs/transaction.json b/tests/upstream/json-specs/transaction.json
index c0d5d5c70..c77104d36 100644
--- a/tests/upstream/json-specs/transaction.json
+++ b/tests/upstream/json-specs/transaction.json
@@ -354,14 +354,14 @@
               "description": "DecodedBodySize holds the size of the decoded payload.",
               "type": [
                 "null",
-                "number"
+                "integer"
               ]
             },
             "encoded_body_size": {
               "description": "EncodedBodySize holds the size of the encoded payload.",
               "type": [
                 "null",
-                "number"
+                "integer"
               ]
             },
             "finished": {
@@ -409,7 +409,7 @@
               "description": "TransferSize holds the total size of the payload.",
               "type": [
                 "null",
-                "number"
+                "integer"
               ]
             }
           }