diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 91be4b8..819a30e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,34 +7,44 @@ on:
 
 jobs:
   test:
+    name: test (${{matrix.python-version}})
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
 
-    - name: Set up Miniconda
-      uses: conda-incubator/setup-miniconda@v3
-      with:
-        python-version: '3.10'
-        activate-environment: testim8
-        environment-file: environment.yml
-        auto-activate-base: false
-
     - name: setup OpenModelica compiler
-      uses: OpenModelica/setup-openmodelica@v1.0
+      uses: OpenModelica/setup-openmodelica@v1.0.2
       with:
         version: 'stable'
         packages: |
-          omc
+          'omc'
         libraries: |
           'Modelica 4.0.0'
 
+    - uses: actions/setup-python@v6
+      with:
+        python-version: 'pypy3.10'
+    - run: pip install OMPython
+
     - name: compile FMU
       shell: bash -l {0}
       run: |
         python tests/test_data/model_compilation.py --modelname Growth
 
+    - name: Set up Miniconda
+      uses: conda-incubator/setup-miniconda@v3
+      with:
+        auto-update-conda: true
+        python-version: ${{ matrix.python-version }}
+        activate-environment: testim8
+        environment-file: environment.yml
+        auto-activate-base: false
+
     - name: Run tests
       shell: bash -l {0}
       run: |
diff --git a/environment.yml b/environment.yml
index 5b331b3..b3e84ad 100644
--- a/environment.yml
+++ b/environment.yml
@@ -1,22 +1,20 @@
 channels:
 - conda-forge
 dependencies:
-  - boa
-  - conda-build
-  - python>=3.10,<3.13
-  - numpy>=1.17.0,<2
-  - pygmo==2.19.6
+  - python>=3.10,<=3.13
+  - numpy
+  - pygmo>=2.19.6
   - pip
-  - pandas
-  - openpyxl
-  - matplotlib
-  - seaborn
-  - grpclib
-  - pytensor
-  - fmpy
-  - scikit-learn==1.4.2
-  - scikit-optimize
   - pip:
+    - pandas<3
+    - openpyxl
+    - matplotlib
+    - seaborn
+    - grpclib
+    - pytensor
+    - fmpy
+    - scikit-learn
+    - scikit-optimize
     - pytensor-federated
     # for code testing
     - pytest
@@ -25,7 +23,5 @@ dependencies:
   # for building
     - twine
     - wheel
-  # compiling FMU models from OMPython API
-    - OMPython
   # sphinx extensions
     - -r docs/requirements.txt
diff --git a/pyproject.toml b/pyproject.toml
index 79ed89d..f5d9ada 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,14 +4,14 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "estim8"
-version = "0.1.1"
+version = "0.1.2"
 authors = [
     {name = "Tobias Latour", email = "t.latour@fz-juelich.de"},
     {name = "Daniel Strohmeier", email = "d.strohmeier@fz-juelich.de"},
     ]
 description = "A parameter estimation tool for DAE models implemented compliant to the Functional Mockup Interface"
 readme = "README.md"
-requires-python = ">=3.10.0,<3.13"
+requires-python = ">=3.10.0,<=3.13"
 license = {text = "AGPLv3"}
 classifiers=[
     "Programming Language :: Python :: 3",
@@ -21,13 +21,13 @@ classifiers=[
 ]
 keywords=["Biorpocessmodeling", "Parameter estimation", "Functional Mockup Interface"]
 dependencies = [
-    "numpy>=1.26.0,<2",
+    "numpy>=1.26.0",
     "fmpy",
     "scikit-optimize",
     "scikit-learn",
     "matplotlib",
     "seaborn",
-    "pandas",
+    "pandas<3",
     "pytensor-federated",
     "pytensor",
     "grpclib",