diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e09b3a..9b97d87 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@
 ### Improvements
 
 * Speeds up the computation of expectation values by using native Qulacs methods.
-  [(#14)](https://github.com/PennyLaneAI/pennylane-qulacs/pull/14)
+  [(#12)](https://github.com/PennyLaneAI/pennylane-qulacs/pull/12)
 
 ### Documentation