diff --git a/library/UnicornHat/CHANGELOG.txt b/library/UnicornHat/CHANGELOG.txt
index e87fa97..7c417cf 100644
--- a/library/UnicornHat/CHANGELOG.txt
+++ b/library/UnicornHat/CHANGELOG.txt
@@ -1,3 +1,8 @@
+2.2.2
+-----
+
+* Bugfix: Switched to DMA channel 10 to avoid SD card locking + freezing
+
 2.2.1
 -----
 
diff --git a/library/UnicornHat/setup.py b/library/UnicornHat/setup.py
index ff45c97..b380e6a 100755
--- a/library/UnicornHat/setup.py
+++ b/library/UnicornHat/setup.py
@@ -36,15 +36,15 @@
 
 setup(
     name            = 'unicornhat',
-    version         = '2.2.1',
+    version         = '2.2.2',
     author          = 'Philip Howard',
     author_email    = 'phil@pimoroni.com',
     description     = """Python library for UnicornHAT/pHAT""",
-    long_description= open('README.txt').read() + open('CHANGELOG.txt').read(),
+    long_description= open('README.txt').read() + "\n" + open('CHANGELOG.txt').read(),
     license         = 'MIT',
     keywords        = 'Raspberry Pi Unicorn HAT',
     url             = 'http://shop.pimoroni.com',
     classifiers     = classifiers,
     py_modules      = [ 'unicornhat' ],
-    install_requires= ['rpi_ws281x >= 3.0.1']
+    install_requires= ['rpi_ws281x >= 3.0.2']
 )
diff --git a/library/UnicornHat/unicornhat.py b/library/UnicornHat/unicornhat.py
index 0f4a2c7..045e013 100644
--- a/library/UnicornHat/unicornhat.py
+++ b/library/UnicornHat/unicornhat.py
@@ -12,7 +12,7 @@
 LED_COUNT      = 64      # Number of LED pixels.
 LED_PIN        = 18      # GPIO pin connected to the pixels (must support PWM!).
 LED_FREQ_HZ    = 800000  # LED signal frequency in hertz (usually 800khz)
-LED_DMA        = 5       # DMA channel to use for generating signal (try 5)
+LED_DMA        = 10      # DMA channel to use for generating signal
 LED_BRIGHTNESS = 128     # Set to 0 for darkest and 255 for brightest
 LED_CHANNEL    = 0       # PWM channel
 LED_INVERT     = False   # True to invert the signal (when using NPN transistor level shift)