diff --git a/.azure-pipelines/scripts/ut/run_itrex.sh b/.azure-pipelines/scripts/ut/run_itrex.sh
index 2f9f4ed79c0..74ff01c7062 100644
--- a/.azure-pipelines/scripts/ut/run_itrex.sh
+++ b/.azure-pipelines/scripts/ut/run_itrex.sh
@@ -13,6 +13,8 @@ bash /intel-extension-for-transformers/.github/workflows/script/install_binary.s
 # prepare test env
 sed -i '/neural-compressor.git/d' /intel-extension-for-transformers/tests/requirements.txt
 pip install -r /intel-extension-for-transformers/tests/requirements.txt
+# workaround
+pip install onnx==1.15.0
 LOG_DIR=/neural-compressor/log_dir
 mkdir -p ${LOG_DIR}
 ut_log_name=${LOG_DIR}/ut_itrex.log
diff --git a/conda_meta/basic/meta.yaml b/conda_meta/basic/meta.yaml
index 46b9efc7d6d..c894131132e 100644
--- a/conda_meta/basic/meta.yaml
+++ b/conda_meta/basic/meta.yaml
@@ -1,4 +1,4 @@
-{% set version = "2.5" %}
+{% set version = "2.6" %}
 {% set buildnumber = 0 %}
 package:
   name: neural-compressor
@@ -16,7 +16,7 @@ requirements:
   run:
     - python
     - pip
-    - numpy<=1.26.4
+    - numpy
     - pyyaml
     - scikit-learn
     - schema
diff --git a/conda_meta/neural_insights/meta.yaml b/conda_meta/neural_insights/meta.yaml
index 9bcb7e7925e..add638448ad 100644
--- a/conda_meta/neural_insights/meta.yaml
+++ b/conda_meta/neural_insights/meta.yaml
@@ -1,4 +1,4 @@
-{% set version = "2.5" %}
+{% set version = "2.6" %}
 {% set buildnumber = 0 %}
 package:
   name: neural-insights
diff --git a/conda_meta/neural_solution/meta.yaml b/conda_meta/neural_solution/meta.yaml
index 1bbf729327d..cef0297fb5d 100644
--- a/conda_meta/neural_solution/meta.yaml
+++ b/conda_meta/neural_solution/meta.yaml
@@ -1,4 +1,4 @@
-{% set version = "2.5" %}
+{% set version = "2.6" %}
 {% set buildnumber = 0 %}
 package:
   name: neural-solution
diff --git a/neural_compressor/version.py b/neural_compressor/version.py
index 297e009aa43..d5e53c1aac7 100644
--- a/neural_compressor/version.py
+++ b/neural_compressor/version.py
@@ -15,4 +15,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 """Intel® Neural Compressor: An open-source Python library supporting popular model compression techniques."""
-__version__ = "2.5"
+__version__ = "2.6"