bump version number
diff --git a/got-version.mk b/got-version.mk
index 3b0c580..6bf4100 100644
--- a/got-version.mk
+++ b/got-version.mk
@@ -1,5 +1,5 @@
GOT_RELEASE=No
-GOT_VERSION_NUMBER=0.57
+GOT_VERSION_NUMBER=0.58
.if ${GOT_RELEASE} == Yes
GOT_VERSION=${GOT_VERSION_NUMBER}