diff --git a/CHANGELOG.md b/CHANGELOG.md
index 650bfef..281f6a9 100644
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+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Unreleased
 
 - Added validation based on models: SPM, SPMe, DFN ([#34](https://github.com/pybamm-team/BPX/pull/34)). A warning will be produced if the user-defined model type does not match the parameter set (e.g., if the model is `SPM`, but the full DFN model parameters are provided).
+- Added support for well-mixed, blended electrodes that contain more than one active material ([#33](https://github.com/pybamm-team/BPX/pull/33))
 
 # [v0.3.1](https://github.com/pybamm-team/BPX/releases/tag/v0.3.1)