diff --git a/configure.ac b/configure.ac
index 089615d4..3aa57c61 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,7 +38,7 @@ VIPS_VERSION_STRING=$VIPS_VERSION-`date`
 #   binary interface changes not backwards compatible?: reset age to 0
 
 LIBRARY_CURRENT=49
-LIBRARY_REVISION=2
+LIBRARY_REVISION=3
 LIBRARY_AGE=7
 
 # patched into include/vips/version.h