diff --git a/plugins/wasm-go/extensions/ai-proxy/provider/azure.go b/plugins/wasm-go/extensions/ai-proxy/provider/azure.go
index 1a79908d4e..b09cdd0951 100644
--- a/plugins/wasm-go/extensions/ai-proxy/provider/azure.go
+++ b/plugins/wasm-go/extensions/ai-proxy/provider/azure.go
@@ -69,7 +69,22 @@ func (m *azureProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName,
 }
 
 func (m *azureProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, headers http.Header, log wrapper.Log) {
-	util.OverwriteRequestPathHeader(headers, m.serviceUrl.RequestURI())
+	u, e := url.Parse(ctx.Path())
+	if e == nil {
+		customApiVersion := u.Query().Get("api-version")
+		if customApiVersion == "" {
+			util.OverwriteRequestPathHeader(headers, m.serviceUrl.RequestURI())
+		} else {
+			q := m.serviceUrl.Query()
+			q.Set("api-version", customApiVersion)
+			newUrl := *m.serviceUrl
+			newUrl.RawQuery = q.Encode()
+			util.OverwriteRequestPathHeader(headers, newUrl.RequestURI())
+		}
+	} else {
+		log.Errorf("failed to parse request path: %v", e)
+		util.OverwriteRequestPathHeader(headers, m.serviceUrl.RequestURI())
+	}
 	util.OverwriteRequestHostHeader(headers, m.serviceUrl.Host)
 	util.OverwriteRequestAuthorizationHeader(headers, "api-key "+m.config.GetApiTokenInUse(ctx))
 	headers.Del("Content-Length")