diff --git a/src/common/autoconfig-mac.h b/src/common/autoconfig-mac.h
index a778243b..9763df36 100644
--- a/src/common/autoconfig-mac.h
+++ b/src/common/autoconfig-mac.h
@@ -125,7 +125,7 @@
 #define PACKAGE_NAME "Recoll"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "Recoll 1.30.2"
+#define PACKAGE_STRING "Recoll 1.31.1pre1"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "recoll"
@@ -134,7 +134,7 @@
 #define PACKAGE_URL ""
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "1.30.2"
+#define PACKAGE_VERSION "1.31.1pre1"
 
 /* putenv parameter is const */
 /* #undef PUTENV_ARG_CONST */