diff --git a/.github/workflows/linux-ci.yml b/.github/workflows/linux-ci.yml
index 8506a3b04..90f00997c 100644
--- a/.github/workflows/linux-ci.yml
+++ b/.github/workflows/linux-ci.yml
@@ -16,18 +16,25 @@ jobs:
             onnx_version: 'onnx-weekly'
             onnxrt_version: 'onnxruntime>=1.22.0'
             python_version: '3.13'
+          - sklearn_version: '==1.7.1'
+            documentation: 1
+            numpy_version: '>=2.0'
+            scipy_version: '>=1.7.0'
+            onnx_version: 'onnx==1.19.0'
+            onnxrt_version: 'onnxruntime>=1.22.0'
+            python_version: '3.13'
           - sklearn_version: '==1.6.1'
             documentation: 1
             numpy_version: '>=2.0'
             scipy_version: '>=1.7.0'
-            onnx_version: 'onnx-weekly'
+            onnx_version: 'onnx==1.19.0'
             onnxrt_version: 'onnxruntime>=1.22.0'
             python_version: '3.12'
           - sklearn_version: '==1.6.1'
             documentation: 0
             numpy_version: '>=2.0'
             scipy_version: '>=1.7.0'
-            onnx_version: 'onnx>=1.18.0'
+            onnx_version: 'onnx==1.18.0'
             onnxrt_version: 'onnxruntime>=1.21.1'
             python_version: '3.12'
           - sklearn_version: '==1.5.2'
diff --git a/.github/workflows/windows-macos-ci.yml b/.github/workflows/windows-macos-ci.yml
index 8b0dcd0bf..c23150378 100644
--- a/.github/workflows/windows-macos-ci.yml
+++ b/.github/workflows/windows-macos-ci.yml
@@ -13,7 +13,7 @@ jobs:
             python_version: '3.12'
             numpy_version: '>=2.0'
             scipy_version: '>=1.7.0'
-            onnx_version: 'onnx==1.18.0'
+            onnx_version: 'onnx==1.19.0'
             onnxrt_version: 'onnxruntime==1.22.0'
           - sklearn_version: '==1.6.1'
             python_version: '3.12'
diff --git a/CHANGELOGS.md b/CHANGELOGS.md
index 19e1571fb..a4169ff6a 100644
--- a/CHANGELOGS.md
+++ b/CHANGELOGS.md
@@ -2,6 +2,8 @@
 
 ## 1.20.0
 
+* Adds __sklearn_is_fitted__ to CastTransformer
+  [#1209](https://github.com/onnx/sklearn-onnx/issues/1209)
 * Fixes missing dimension (number of features) in StackingClassifier
   [#1201](https://github.com/onnx/sklearn-onnx/issues/1201)
 * Fixes CastTransformer output type