diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b9f34d1..aa899935 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+## v8.4.0 (2024-03-22)
+
+### Feat
+
+- Add Discharge Reciprocating Pump function
+
+### Fix
+
+- make Changelog a collapsable list (#167)
+
 ## v8.3.3 (2024-03-20)
 
 ### Fix
diff --git a/pyproject.toml b/pyproject.toml
index 5b79b716..239f1bd2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "indsl"
-version = "8.3.3"
+version = "8.4.0"
 description = "Industrial Data Science Library by Cognite"
 authors = ["Cognite"]
 license = "Apache-2.0"
@@ -124,7 +124,7 @@ known-third-party = ["pytest"]
 
 [tool.commitizen]
 name = "cz_conventional_commits"
-version = "8.3.3"
+version = "8.4.0"
 tag_format = "v$version"
 version_files = ["pyproject.toml:version"]