diff --git a/python/Makefile b/python/Makefile
index c4f69cdc778174218324bdc92670080139d20ac7..621225a7c8d21087f46460811b9f5be62bbb5c6a 100644
--- a/python/Makefile
+++ b/python/Makefile
@@ -13,8 +13,8 @@
 # * change resources.
 # * want to install trace-generator and run tests
 
-VERSION = v2.0.0_beta_0
-DIST_VERSION = v2_0_0_beta_0
+VERSION = v1.3.0_beta_0
+DIST_VERSION = v1_3_0_beta_0
 MAC_M1_APP = MP-Gryphon_mac_m1_$(DIST_VERSION)
 MAC_INTEL_APP = MP-Gryphon_mac_intel_$(DIST_VERSION)
 UBUNTU_X64_APP = MP-Gryphon_ubuntu_20_4_x64_$(DIST_VERSION)
diff --git a/python/version_file.py b/python/version_file.py
index fb902822340890d58fbcf2b5a951dc881bc0741b..c6cdfbe93073e623e81f77ad9d6d22d086f202c9 100644
--- a/python/version_file.py
+++ b/python/version_file.py
@@ -1,2 +1,2 @@
 # This file is auto-generated by Makefile.  Do not edit this file.
-VERSION = "v2.0.0_beta_0"
+VERSION = "v1.3.0_beta_0"