diff --git a/Project.toml b/Project.toml
index b75e637920..d0185357cf 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "MathOptInterface"
 uuid = "b8f27783-ece8-5eb3-8dc8-9495eed66fee"
-version = "1.1.0"
+version = "1.1.1"
 
 [deps]
 BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
diff --git a/docs/src/release_notes.md b/docs/src/release_notes.md
index fb728fcf10..9bdcec7ecb 100644
--- a/docs/src/release_notes.md
+++ b/docs/src/release_notes.md
@@ -1,5 +1,23 @@
 # Release notes
 
+## v1.1.1 (March 23, 2022)
+
+For a detailed list of the closed issues and pull requests from this release,
+see the [tag notes](https://github.com/jump-dev/MathOptInterface.jl/releases/tag/v1.1.1).
+
+### Bug fixes
+
+ - Fix bug in `test_model_UpperBoundAlreadySet`
+ - Fix bug in `test_infeasible_` tests
+ - Fix bug in `test_objective_ObjectiveFunction_blank`
+ - Relax restriction of `MOI.AbstractOptimizer` to `MOI.ModelLike` in
+   `Utilities.CachingOptimizer` and `instantiate`.
+
+### New tests
+
+ - Add `test_conic_empty_matrix` that checks conic solvers support problems with
+   no variables.
+
 ## v1.1.0 (March 2, 2022)
 
 For a detailed list of the closed issues and pull requests from this release,