diff --git a/CHANGELOG.md b/CHANGELOG.md
index 082ec42..4e43885 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### dependabot: \#84 Bump diff from 4.0.2 to 4.0.4
+
 ## [2.2.0] - 2025-10-02
 
 ### Added
diff --git a/yarn.lock b/yarn.lock
index a8b93d6..fdda3d6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2606,9 +2606,9 @@ diff-sequences@^29.4.3:
   integrity sha512-ofrBgwpPhCD85kMKtE9RYFFq6OC1A89oW2vvgWZNCwxrUpRUILopY7lsYyMDSjc8g6U6aiO0Qubg6r4Wgt5ZnA==
 
 diff@^4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.2.tgz#60f3aecb89d5fae520c11aa19efc2bb982aade7d"
-  integrity sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.4.tgz#7a6dbfda325f25f07517e9b518f897c08332e07d"
+  integrity sha512-X07nttJQkwkfKfvTPG/KSnE2OMdcUCao6+eXF3wmnIQRn2aPAHH3VxDbDOdegkd6JbPsXqShpvEOHfAT+nCNwQ==
 
 dir-glob@^3.0.1:
   version "3.0.1"