diff --git a/build_all/docs/Doxyfile b/build_all/docs/Doxyfile
index d3845a9b39..91df7e026d 100644
--- a/build_all/docs/Doxyfile
+++ b/build_all/docs/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "Microsoft Azure IoT Device SDK for C"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.3.7
+PROJECT_NUMBER         = 1.3.8
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/iothub_client/inc/iothub_client_version.h b/iothub_client/inc/iothub_client_version.h
index f6355f7eb0..5a469e73ca 100644
--- a/iothub_client/inc/iothub_client_version.h
+++ b/iothub_client/inc/iothub_client_version.h
@@ -8,7 +8,7 @@
 #ifndef IOTHUB_CLIENT_VERSION_H
 #define IOTHUB_CLIENT_VERSION_H
 
-#define IOTHUB_SDK_VERSION "1.3.7"
+#define IOTHUB_SDK_VERSION "1.3.8"
 
 #include "umock_c/umock_c_prod.h"
 
diff --git a/iothub_client/tests/iothubclient_ll_u2b_ut/iothub_client_ll_u2b_ut.c b/iothub_client/tests/iothubclient_ll_u2b_ut/iothub_client_ll_u2b_ut.c
index 9331d48f94..7ca2da652e 100644
--- a/iothub_client/tests/iothubclient_ll_u2b_ut/iothub_client_ll_u2b_ut.c
+++ b/iothub_client/tests/iothubclient_ll_u2b_ut/iothub_client_ll_u2b_ut.c
@@ -69,7 +69,7 @@ MOCKABLE_FUNCTION(, JSON_Object*, json_value_get_object, const JSON_Value *, val
 #define TEST_STRING_HANDLE_DEVICE_SAS ((STRING_HANDLE)0x2)
 
 #define TEST_API_VERSION "?api-version=2016-11-14"
-#define TEST_IOTHUB_SDK_VERSION "1.3.7"
+#define TEST_IOTHUB_SDK_VERSION "1.3.8"
 
 static const char* const testUploadtrustedCertificates = "some certificates";
 static const char* const TEST_SAS_TOKEN = "test_sas_token";
diff --git a/iothub_client/tests/version_ut/version_ut.c b/iothub_client/tests/version_ut/version_ut.c
index b029e1dc79..42a45f44ff 100644
--- a/iothub_client/tests/version_ut/version_ut.c
+++ b/iothub_client/tests/version_ut/version_ut.c
@@ -8,7 +8,7 @@ BEGIN_TEST_SUITE(version_ut)
 
     TEST_FUNCTION(the_version_constant_has_the_expected_value)
     {
-        ASSERT_ARE_EQUAL(char_ptr, "1.3.7", IOTHUB_SDK_VERSION);
+        ASSERT_ARE_EQUAL(char_ptr, "1.3.8", IOTHUB_SDK_VERSION);
     }
 
     /*Tests_SRS_IOTHUBCLIENT_05_001: [IoTHubClient_GetVersionString shall return a pointer to a constant string which indicates the version of IoTHubClient API.]*/
diff --git a/provisioning_client/inc/azure_prov_client/prov_client_const.h b/provisioning_client/inc/azure_prov_client/prov_client_const.h
index 7089a5effb..ba72a7006b 100644
--- a/provisioning_client/inc/azure_prov_client/prov_client_const.h
+++ b/provisioning_client/inc/azure_prov_client/prov_client_const.h
@@ -4,7 +4,7 @@
 #ifndef PROV_CLIENT_CONST_H
 #define PROV_CLIENT_CONST_H
 
-#define PROV_DEVICE_CLIENT_VERSION "1.3.7"
+#define PROV_DEVICE_CLIENT_VERSION "1.3.8"
 #define PROV_GET_THROTTLE_TIME      1
 #define MAX_PROV_GET_THROTTLE_TIME  5*60
 
diff --git a/version.txt b/version.txt
index 8ed486ab78..06c7347f09 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.3.7
\ No newline at end of file
+1.3.8
\ No newline at end of file