diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92ac8dec91..9157f0de1a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,12 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [2.1.20](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.19...v2.1.20) (2024-11-08)
+
+### Bug Fixes
+
+- **ci:** moving several tasks from yarn to bun, improve tests ([#1566](https://github.com/cornerstonejs/cornerstone3D/issues/1566)) ([ebfd52f](https://github.com/cornerstonejs/cornerstone3D/commit/ebfd52f57c210d590fb06ad593e2d61237b3f1ee))
+
 ## [2.1.19](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.18...v2.1.19) (2024-11-08)
 
 ### Bug Fixes
diff --git a/lerna.json b/lerna.json
index b86ea7b01f..c5126e44ad 100644
--- a/lerna.json
+++ b/lerna.json
@@ -1,5 +1,5 @@
 {
-  "version": "2.1.19",
+  "version": "2.1.20",
   "packages": [
     "packages/core",
     "packages/tools",
diff --git a/packages/adapters/CHANGELOG.md b/packages/adapters/CHANGELOG.md
index 4646519eff..630ad119db 100644
--- a/packages/adapters/CHANGELOG.md
+++ b/packages/adapters/CHANGELOG.md
@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [2.1.20](https://github.com/dcmjs-org/dcmjs/compare/v2.1.19...v2.1.20) (2024-11-08)
+
+**Note:** Version bump only for package @cornerstonejs/adapters
+
 ## [2.1.19](https://github.com/dcmjs-org/dcmjs/compare/v2.1.18...v2.1.19) (2024-11-08)
 
 **Note:** Version bump only for package @cornerstonejs/adapters
diff --git a/packages/adapters/package.json b/packages/adapters/package.json
index 403a265fa1..1490b6ddb8 100644
--- a/packages/adapters/package.json
+++ b/packages/adapters/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@cornerstonejs/adapters",
-    "version": "2.1.19",
+    "version": "2.1.20",
     "description": "Adapters for Cornerstone3D to/from formats including DICOM SR and others",
     "module": "./dist/esm/index.js",
     "types": "./dist/esm/index.d.ts",
diff --git a/packages/core/CHANGELOG.md b/packages/core/CHANGELOG.md
index 6db6a4b132..cf293abb58 100644
--- a/packages/core/CHANGELOG.md
+++ b/packages/core/CHANGELOG.md
@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [2.1.20](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.19...v2.1.20) (2024-11-08)
+
+**Note:** Version bump only for package @cornerstonejs/core
+
 ## [2.1.19](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.18...v2.1.19) (2024-11-08)
 
 ### Bug Fixes
diff --git a/packages/core/package.json b/packages/core/package.json
index aa3e5fbc8f..9bdd5730ee 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cornerstonejs/core",
-  "version": "2.1.19",
+  "version": "2.1.20",
   "description": "",
   "module": "./dist/esm/index.js",
   "types": "./dist/esm/index.d.ts",
diff --git a/packages/dicomImageLoader/CHANGELOG.md b/packages/dicomImageLoader/CHANGELOG.md
index 30ca71e4c3..5b637c6ae8 100644
--- a/packages/dicomImageLoader/CHANGELOG.md
+++ b/packages/dicomImageLoader/CHANGELOG.md
@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [2.1.20](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.19...v2.1.20) (2024-11-08)
+
+**Note:** Version bump only for package @cornerstonejs/dicom-image-loader
+
 ## [2.1.19](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.18...v2.1.19) (2024-11-08)
 
 **Note:** Version bump only for package @cornerstonejs/dicom-image-loader
diff --git a/packages/dicomImageLoader/package.json b/packages/dicomImageLoader/package.json
index 920956aeb0..05edc1d944 100644
--- a/packages/dicomImageLoader/package.json
+++ b/packages/dicomImageLoader/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cornerstonejs/dicom-image-loader",
-  "version": "2.1.19",
+  "version": "2.1.20",
   "description": "Cornerstone Image Loader for DICOM WADO-URI and WADO-RS and Local file",
   "keywords": [
     "DICOM",
diff --git a/packages/nifti-volume-loader/CHANGELOG.md b/packages/nifti-volume-loader/CHANGELOG.md
index 7acc7f85f6..3c75b6ca20 100644
--- a/packages/nifti-volume-loader/CHANGELOG.md
+++ b/packages/nifti-volume-loader/CHANGELOG.md
@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [2.1.20](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.19...v2.1.20) (2024-11-08)
+
+**Note:** Version bump only for package @cornerstonejs/nifti-volume-loader
+
 ## [2.1.19](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.18...v2.1.19) (2024-11-08)
 
 **Note:** Version bump only for package @cornerstonejs/nifti-volume-loader
diff --git a/packages/nifti-volume-loader/package.json b/packages/nifti-volume-loader/package.json
index 8d3c3f4ee4..7c3b0c6d1f 100644
--- a/packages/nifti-volume-loader/package.json
+++ b/packages/nifti-volume-loader/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cornerstonejs/nifti-volume-loader",
-  "version": "2.1.19",
+  "version": "2.1.20",
   "description": "Nifti Image Loader for Cornerstone3D",
   "module": "./dist/esm/index.js",
   "types": "./dist/esm/index.d.ts",
diff --git a/packages/tools/CHANGELOG.md b/packages/tools/CHANGELOG.md
index ff8bc5abca..ec61c77fc6 100644
--- a/packages/tools/CHANGELOG.md
+++ b/packages/tools/CHANGELOG.md
@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [2.1.20](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.19...v2.1.20) (2024-11-08)
+
+**Note:** Version bump only for package @cornerstonejs/tools
+
 ## [2.1.19](https://github.com/cornerstonejs/cornerstone3D/compare/v2.1.18...v2.1.19) (2024-11-08)
 
 ### Bug Fixes
diff --git a/packages/tools/package.json b/packages/tools/package.json
index ae3174a1c9..d421d3984c 100644
--- a/packages/tools/package.json
+++ b/packages/tools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cornerstonejs/tools",
-  "version": "2.1.19",
+  "version": "2.1.20",
   "description": "Cornerstone3D Tools",
   "types": "./dist/esm/index.d.ts",
   "module": "./dist/esm/index.js",