diff --git a/tomoscan/version.py b/tomoscan/version.py
index 9845bf6ab6c74e4e5c47afbe7bb162f102563502..3e4334ae73eb3feddfec1c67272c9cfe08b3c715 100644
--- a/tomoscan/version.py
+++ b/tomoscan/version.py
@@ -54,7 +54,7 @@ RELEASE_LEVEL_VALUE = {
 
 MAJOR = 2
 MINOR = 1
-MICRO = 3
+MICRO = 4
 RELEV = "final"  # <16
 SERIAL = 0