diff --git a/include/curl/curl.h b/include/curl/curl.h
index ae73c1dde..ee6a2d70d 100644
--- a/include/curl/curl.h
+++ b/include/curl/curl.h
@@ -29,7 +29,7 @@
 
 /* This is the version number of the libcurl package from which this header
    file origins: */
-#define LIBCURL_VERSION "7.10.6-pre3"
+#define LIBCURL_VERSION "7.10.6-pre4"
 
 /* This is the numeric version of the libcurl version number, meant for easier
    parsing and comparions by programs. The LIBCURL_VERSION_NUM define will
diff --git a/src/version.h b/src/version.h
index 22e6f8d65..0a6231ff5 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,3 +1,3 @@
 #define CURL_NAME "curl"
-#define CURL_VERSION "7.10.6-pre3"
+#define CURL_VERSION "7.10.6-pre4"
 #define CURL_ID CURL_NAME " " CURL_VERSION " (" OS ") "