diff --git a/Project.toml b/Project.toml
index 41e3ba1772..95ee521b0e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "MathOptInterface"
 uuid = "b8f27783-ece8-5eb3-8dc8-9495eed66fee"
-version = "1.50.0"
+version = "1.50.1"
 
 [deps]
 BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
diff --git a/docs/src/changelog.md b/docs/src/changelog.md
index 8634f98a9c..9ddcbb6e2b 100644
--- a/docs/src/changelog.md
+++ b/docs/src/changelog.md
@@ -7,6 +7,12 @@ CurrentModule = MathOptInterface
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## v1.50.1 (March 27, 2026)
+
+### Fixed
+
+- Fixed reading defined variables in `.nl` files that are not expressions (#2980)
+
 ## v1.50.0 (March 23, 2026)
 
 ### Added