diff --git a/.github/workflows/ci-cd.yaml b/.github/workflows/ci-cd.yaml
index c1d7256..30f6fa6 100644
--- a/.github/workflows/ci-cd.yaml
+++ b/.github/workflows/ci-cd.yaml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [14, 16, 18, 20, 22, 24, 25]
+        node: [14, 16, 18, 20, 22, 24, 25, 26]
         os: [ubuntu-latest, macOS-latest, windows-latest]
         exclude:
         - node: 14
@@ -32,7 +32,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [14, 16, 18, 20, 22, 24, 25]
+        node: [14, 16, 18, 20, 22, 24, 25, 26]
         os: [ubuntu-latest, macOS-latest, windows-latest]
         exclude:
         - node: 14
diff --git a/CHANGES.md b/CHANGES.md
index 2e03d03..fab3f36 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+## 1.8.3
+* add JXL to supported image formats
+* add node 26 as test target
+
 ## 1.8.2
 * Removed the `GET` with body HTTP call that was being made when obtaining the results of a compression and transforming at the same time. Replaced with `POST` in order to prepare for deprecation of `GET` with body interface from API.
 * Updated dependencies.
diff --git a/package.json b/package.json
index 9c376c7..a24959f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tinify",
-  "version": "1.8.2",
+  "version": "1.8.3",
   "description": "Node.js client for the Tinify API. Tinify compresses your images intelligently. Read more at https://tinify.com.",
   "keywords": [
     "tinify",
@@ -54,4 +54,4 @@
     "tslint": "^5.10.0",
     "typescript": "^5.7.3"
   }
-}
\ No newline at end of file
+}
diff --git a/src/tinify/Source.ts b/src/tinify/Source.ts
index df6ba63..e1fab71 100644
--- a/src/tinify/Source.ts
+++ b/src/tinify/Source.ts
@@ -9,6 +9,7 @@ export type SupportedImageTypes = "image/webp"
   | "image/png"
   | "image/jpg"
   | "image/jpeg"
+  | "image/jxl"
   | "image/avif";
 
 export type WildcardOrSupportedImageTypes = SupportedImageTypes