diff --git a/CHANGELOG.md b/CHANGELOG.md
index 28e2f86d2..c0fa2f657 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,15 @@ All notable changes to this project will be documented in this file.
 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).
 
+## [0.19.1] - 2024-04-11
+### ✨ Highlights
+This fixes the issue where pixi would generate broken environments/lockfiles when a mapping for a brand-new version of a package is missing.
+
+### 📃 Details
+- Add fallback mechanism for missing mapping by @nichmor in [#1166](https://github.com/prefix-dev/pixi/pull/1166)
+
+[Full commit history](https://github.com/prefix-dev/pixi/compare/v0.19.0..v0.19.1)
+
 ## [0.19.0] - 2024-04-10
 ### ✨ Highlights
 - This release adds a new `pixi tree` command to show the dependency tree of the project.
diff --git a/CITATION.cff b/CITATION.cff
index 0f7e74629..3bf5db6fc 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -24,8 +24,8 @@ authors:
     name-particle: de
     family-names: Jager
     email: tdejager89@gmail.com
-repository-code: 'https://github.com/prefix-dev/pixi/releases/tag/v0.19.0'
-url: 'https://pixi.sh/v0.19.0'
+repository-code: 'https://github.com/prefix-dev/pixi/releases/tag/v0.19.1'
+url: 'https://pixi.sh/v0.19.1'
 abstract: >-
   A cross-platform, language agnostic, package/project
   management tool for development in virtual environments.
diff --git a/Cargo.lock b/Cargo.lock
index 672ffadec..7b274474d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3025,7 +3025,7 @@ dependencies = [
 
 [[package]]
 name = "pixi"
-version = "0.19.0"
+version = "0.19.1"
 dependencies = [
  "assert_matches",
  "async-once-cell",
diff --git a/Cargo.toml b/Cargo.toml
index 24cc06aa9..ae1138bfe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pixi"
-version = "0.19.0"
+version = "0.19.1"
 description = "A package management and workflow tool"
 edition = "2021"
 authors = ["pixi contributors <hi@prefix.dev>"]
diff --git a/docs/advanced/github_actions.md b/docs/advanced/github_actions.md
index 8da11040f..72868c833 100644
--- a/docs/advanced/github_actions.md
+++ b/docs/advanced/github_actions.md
@@ -15,7 +15,7 @@ We created [prefix-dev/setup-pixi](https://github.com/prefix-dev/setup-pixi) to
 ```yaml
 - uses: prefix-dev/setup-pixi@v0.5.1
   with:
-    pixi-version: v0.19.0
+    pixi-version: v0.19.1
     cache: true
     auth-host: prefix.dev
     auth-token: ${{ secrets.PREFIX_DEV_TOKEN }}
diff --git a/tbump.toml b/tbump.toml
index fba102677..32da6b3b7 100644
--- a/tbump.toml
+++ b/tbump.toml
@@ -1,7 +1,7 @@
 github_url = "https://github.com/prefix-dev/pixi"
 
 [version]
-current = "0.19.0"
+current = "0.19.1"
 
 # Example of a semver regexp.
 # Make sure this matches current_version before
@@ -19,7 +19,7 @@ regex = '''
 
 [git]
 # The current version will get updated when tbump is run
-message_template = "Bump version: 0.19.0 → {new_version}"
+message_template = "Bump version: 0.19.1 → {new_version}"
 tag_template = "v{new_version}"
 
 # For each file to patch, add a [[file]] config