diff --git a/emu_base/__init__.py b/emu_base/__init__.py
index 428750f..8ed935d 100644
--- a/emu_base/__init__.py
+++ b/emu_base/__init__.py
@@ -44,4 +44,4 @@
     "DEFAULT_MAX_KRYLOV_DIM",
 ]
 
-__version__ = "1.2.0"
+__version__ = "1.2.1"
diff --git a/emu_mps/__init__.py b/emu_mps/__init__.py
index 603c36a..6b72031 100644
--- a/emu_mps/__init__.py
+++ b/emu_mps/__init__.py
@@ -35,4 +35,4 @@
     "SecondMomentOfEnergy",
 ]
 
-__version__ = "1.2.0"
+__version__ = "1.2.1"