diff --git a/CHANGELOG.md b/CHANGELOG.md
index fdf568f19..894c097a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## 4.1.0 (2023-11-13)
+
+### Features
+
+#### update qcs-sdk-rust (#1683)
+
+### Fixes
+
+#### The `DefGate.matrix` property will no longer raise an exception when the matrix contains a mix of atomic and object types. (#1685)
+
+#### Instruction types no longer return a superclass instance when using `copy.deepcopy` (#1689)
+
+#### DefGate's no longer appear in the instructions list (#1688)
+
 ## 4.1.0-rc.5 (2023-11-13)
 
 ### Features
diff --git a/pyproject.toml b/pyproject.toml
index 1c0028ce1..1546b5fcb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pyquil"
-version = "4.1.0-rc.5"
+version = "4.1.0"
 description = "A Python library for creating Quantum Instruction Language (Quil) programs."
 authors = ["Rigetti Computing <softapps@rigetti.com>"]
 readme = "README.md"