diff --git a/HISTORY.rst b/HISTORY.rst
index 378fcdb..1a387a2 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,6 +1,13 @@
 =======
 History
 =======
+
+0.9.0 (2018-12-07)
+------------------
+
+* Trap UnicodeEncodeError when printing output. Offending characters
+  are replaced and a warning is logged once. Hints at incorrectly set
+  PYTHONIOENCODING.
 
 0.8.1 (2018-12-04)
 ------------------
diff --git a/procrunner/__init__.py b/procrunner/__init__.py
index 40f77e8..da78547 100644
--- a/procrunner/__init__.py
+++ b/procrunner/__init__.py
@@ -53,7 +53,7 @@
 
 __author__ = """Markus Gerstel"""
 __email__ = "scientificsoftware@diamond.ac.uk"
-__version__ = "0.8.1"
+__version__ = "0.9.0"
 
 logger = logging.getLogger("procrunner")
 logger.addHandler(logging.NullHandler())
diff --git a/setup.cfg b/setup.cfg
index 638fd54..160c03c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.8.1
+current_version = 0.9.0
 commit = True
 tag = True
 
diff --git a/setup.py b/setup.py
index 2cbd571..ea3acc0 100644
--- a/setup.py
+++ b/setup.py
@@ -56,6 +56,6 @@
     test_suite="tests",
     tests_require=test_requirements,
     url="https://github.com/DiamondLightSource/python-procrunner",
-    version="0.8.1",
+    version="0.9.0",
     zip_safe=False,
 )