diff --git a/docs/source/conf.py b/docs/source/conf.py
index 7c9ba27d64..1a2a18d91a 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -72,7 +72,7 @@ copyright = '2011-2021, Massachusetts Institute of Technology and OpenMC contrib
 # The short X.Y version.
 version = "0.12"
 # The full version, including alpha/beta/rc tags.
-release = "0.12.1-dev"
+release = "0.12.1"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -215,6 +215,7 @@ latex_elements = {
 \hypersetup{bookmarksdepth=3}
 \setcounter{tocdepth}{2}
 \numberwithin{equation}{section}
+\DeclareUnicodeCharacter{03B1}{$\alpha$}
 """,
 'printindex': r""
 }
diff --git a/include/openmc/version.h.in b/include/openmc/version.h.in
index a7cf51d048..e094c9d027 100644
--- a/include/openmc/version.h.in
+++ b/include/openmc/version.h.in
@@ -6,7 +6,7 @@ namespace openmc {
 constexpr int VERSION_MAJOR {@OPENMC_VERSION_MAJOR@};
 constexpr int VERSION_MINOR {@OPENMC_VERSION_MINOR@};
 constexpr int VERSION_RELEASE {@OPENMC_VERSION_RELEASE@};
-constexpr bool VERSION_DEV {true};
+constexpr bool VERSION_DEV {false};
 constexpr std::array<int, 3> VERSION {VERSION_MAJOR, VERSION_MINOR, VERSION_RELEASE};
 
 }
diff --git a/openmc/__init__.py b/openmc/__init__.py
index 3e66c54115..b02bd57522 100644
--- a/openmc/__init__.py
+++ b/openmc/__init__.py
@@ -34,4 +34,4 @@ from . import examples
 # Import a few convencience functions that used to be here
 from openmc.model import rectangular_prism, hexagonal_prism
 
-__version__ = '0.12.1-dev'
+__version__ = '0.12.1'