diff --git a/Makefile b/Makefile
index 4fd5c9321..b3e7bd7a6 100644
--- a/Makefile
+++ b/Makefile
@@ -60,7 +60,7 @@ clean:
 
 
 # rule for making release
-RNAME = mtex-4.0.18
+RNAME = mtex-4.0.20
 RDIR = ../releases
 release:
 	rm -rf $(RDIR)/$(RNAME)*
diff --git a/VERSION b/VERSION
index 2e9571a51..4476a33ee 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-MTEX 4.0.18
+MTEX 4.0.20