diff --git a/platformio.ini b/platformio.ini
index 2c159c1e..97f71896 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -26,7 +26,7 @@ description = Paxcounter is a proof-of-concept ESP32 device for metering passeng
 
 [common]
 ; for release_version use max. 10 chars total, use any decimal format like "a.b.c"
-release_version = 1.4.36
+release_version = 1.5.0
 ; DEBUG LEVEL: For production run set to 0, otherwise device will leak RAM while running!
 ; 0=None, 1=Error, 2=Warn, 3=Info, 4=Debug, 5=Verbose
 debug_level = 0
@@ -76,7 +76,7 @@ platform = ${common.platform_espressif32}
 framework = arduino
 board = heltec_wifi_lora_32
 board_build.partitions = ${common.board_build.partitions}
-upload_speed = 115200
+upload_speed = 921600
 lib_deps = 
     ${common.lib_deps_all}
     ${common.lib_deps_display}
diff --git a/src/ota.cpp b/src/ota.cpp
index 6be81127..93a94e6c 100644
--- a/src/ota.cpp
+++ b/src/ota.cpp
@@ -15,7 +15,7 @@
  limitations under the License.
 */
 
-#include "OTA.h"
+#include "ota.h"
 
 const BintrayClient bintray(BINTRAY_USER, BINTRAY_REPO, BINTRAY_PACKAGE);
 
diff --git a/src/ota.h b/src/ota.h
index 4b9e92d1..27c1b748 100644
--- a/src/ota.h
+++ b/src/ota.h
@@ -6,6 +6,7 @@
 #include <WiFiClientSecure.h>
 #include <Update.h>
 #include <BintrayClient.h>
+#include <string>
 
 void checkFirmwareUpdates();
 void processOTAUpdate(const String &version);