diff --git a/src/soplex/spxdefines.h b/src/soplex/spxdefines.h
index 483505d3..7c3a33b8 100644
--- a/src/soplex/spxdefines.h
+++ b/src/soplex/spxdefines.h
@@ -93,7 +93,7 @@ bool EQ(int a, int b);
 
 #define SOPLEX_VERSION         701
 #define SOPLEX_SUBVERSION        0
-#define SOPLEX_APIVERSION       15
+#define SOPLEX_APIVERSION       14
 #define SOPLEX_COPYRIGHT       "Copyright (c) 1996-2024 Zuse Institute Berlin (ZIB)"
 
 /*-----------------------------------------------------------------------------