diff --git a/README.md b/README.md
index f95909d6f..aff39123a 100755
--- a/README.md
+++ b/README.md
@@ -383,6 +383,7 @@ Supported operating systems and hardware:
 * 2013-10-17, Created.<br/>
 
 ## History
+* v1.0, 2015-01-02, hotfix [#216](https://github.com/winlinvip/simple-rtmp-server/issues/216), http-callback post in application/json content-type. 1.0.17
 * v1.0, 2015-01-01, hotfix [#270](https://github.com/winlinvip/simple-rtmp-server/issues/270), memory leak for http client post. 1.0.16
 * v1.0, 2014-12-29, hotfix [#267](https://github.com/winlinvip/simple-rtmp-server/issues/267), the forward dest ep should use server. 1.0.15
 * v1.0, 2014-12-29, hotfix [#268](https://github.com/winlinvip/simple-rtmp-server/issues/268), the hls pcr is negative when startup. 1.0.14
diff --git a/trunk/src/app/srs_app_http_client.cpp b/trunk/src/app/srs_app_http_client.cpp
index a1ad903cf..978777599 100644
--- a/trunk/src/app/srs_app_http_client.cpp
+++ b/trunk/src/app/srs_app_http_client.cpp
@@ -81,7 +81,7 @@ int SrsHttpClient::post(SrsHttpUri* uri, string req, string& res)
         << "Connection: Keep-Alive" << __SRS_CRLF
         << "Content-Length: " << std::dec << req.length() << __SRS_CRLF
         << "User-Agent: " << RTMP_SIG_SRS_NAME << RTMP_SIG_SRS_VERSION << __SRS_CRLF
-        << "Content-Type: text/html" << __SRS_CRLF
+        << "Content-Type: application/json" << __SRS_CRLF
         << __SRS_CRLF
         << req;
     
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 37d5e06ad..7fadd5f19 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       1
 #define VERSION_MINOR       0
-#define VERSION_REVISION    16
+#define VERSION_REVISION    17
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"
 #define RTMP_SIG_SRS_ROLE "origin/edge server"