diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1c450e1a..61434dc0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,13 @@ will consitute of a breaking change warranting a new major release:
 
 # [v4.0.0] to be released
 
+# [v3.1.0]
+
+## Fixed
+
+- TMP1075 bugfix where negative temperatures could not be measured because of a two's-complement
+  conversion bug.
+
 # [v3.0.0] 2023-06-11
 
 - `eive-tmtc` version v4.0.0