diff --git a/tools/build/Makefile.vars b/tools/build/Makefile.vars
index 07109b8d3..cf8411c83 100644
--- a/tools/build/Makefile.vars
+++ b/tools/build/Makefile.vars
@@ -83,8 +83,8 @@ LIB_ASAN_PATH =
 PREFIX := $(patsubst "%",%,$(PREFIX))
 EXTRA_BINS :=
 
-SOL_VERSION := 1
-SOL_LIB_CURRENT := 1
+SOL_VERSION := 2
+SOL_LIB_CURRENT := 2
 SOL_LIB_REVISION := 0
 SOL_LIB_AGE := 0