diff --git a/version.inc b/version.inc
index befdca3b4..04d8fd57f 100644
--- a/version.inc
+++ b/version.inc
@@ -3,7 +3,7 @@
 
 set(SLIC3R_APP_NAME "Slic3r++")
 set(SLIC3R_APP_KEY "Slic3r++")
-set(SLIC3R_VERSION "1.44.0")
+set(SLIC3R_VERSION "2.1.44")
 set(SLIC3R_BUILD_ID "slic3r++_${SLIC3R_VERSION}+UNKNOWN")
-set(SLIC3R_RC_VERSION "1,44,0,0")
-set(SLIC3R_RC_VERSION_DOTS "1.44.0.0")
+set(SLIC3R_RC_VERSION "2,1,44,0")
+set(SLIC3R_RC_VERSION_DOTS "2.1.44.0")