diff --git a/CHANGELOG.md b/CHANGELOG.md
index a149e9b..9ef004a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,10 @@ as of version 2.1.1.
 ### Changed
 - Changed the build system from poetry-core to setuptools.
 - Changed the VCPCode type to use class attributes instead of property functions.
+- Changed enums from `enum.Enum` to `enum.IntEnum`:
+  - `ColorPreset`
+  - `PowerMode`
+  - `InputSource`
 
 ### Removed
 - Removed support for end-of-life python version 3.8.
diff --git a/monitorcontrol/monitorcontrol.py b/monitorcontrol/monitorcontrol.py
index b7e5778..d5157e9 100644
--- a/monitorcontrol/monitorcontrol.py
+++ b/monitorcontrol/monitorcontrol.py
@@ -6,7 +6,7 @@
 
 
 @enum.unique
-class ColorPreset(enum.Enum):
+class ColorPreset(enum.IntEnum):
     """Monitor color presets."""
 
     COLOR_TEMP_4000K = 0x03
@@ -23,7 +23,7 @@ class ColorPreset(enum.Enum):
 
 
 @enum.unique
-class PowerMode(enum.Enum):
+class PowerMode(enum.IntEnum):
     """Monitor power modes."""
 
     #: On.
@@ -39,7 +39,7 @@ class PowerMode(enum.Enum):
 
 
 @enum.unique
-class InputSource(enum.Enum):
+class InputSource(enum.IntEnum):
     """Monitor input sources."""
 
     OFF = 0x00