diff --git a/include/curl/curl.h b/include/curl/curl.h
index 4125116790d4c8538f18a5e7d607a30fc3074d03..bef3e6e914689d7d44670b99c31355d2e4f58890 100644
--- a/include/curl/curl.h
+++ b/include/curl/curl.h
@@ -456,8 +456,8 @@ char *curl_getenv(char *variable);
 char *curl_version(void);
 
 /* This is the version number */
-#define LIBCURL_VERSION "7.5.2"
-#define LIBCURL_VERSION_NUM 0x070502
+#define LIBCURL_VERSION "7.6-pre1"
+#define LIBCURL_VERSION_NUM 0x070600
 
 /* linked-list structure for the CURLOPT_QUOTE option (and other) */
 struct curl_slist {
diff --git a/src/version.h b/src/version.h
index 579daa88efc6076816a2d4cb23e9843754b033c2..d4a2a1715ecd4aadb5324a396d7b58189e053def 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,3 +1,3 @@
 #define CURL_NAME "curl"
-#define CURL_VERSION "7.5.2"
+#define CURL_VERSION "7.6-pre1"
 #define CURL_ID CURL_NAME " " CURL_VERSION " (" OS ") "