diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 74e8ee3..6c6d5e6 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -24,7 +24,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
+        python -m pip install --upgrade pip==19.3.1
         pip install flake8 pytest pybind11
         pip install -e ".[testing]"
     - name: Lint with flake8
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index db2bbbf..5da748f 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -19,7 +19,7 @@ jobs:
         python-version: '3.x'
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
+        python -m pip install --upgrade pip==19.3.1
         pip install setuptools wheel twine
     - name: Build and publish
       env:
diff --git a/cechmate/_version.py b/cechmate/_version.py
index 9b36b86..3dc1f76 100644
--- a/cechmate/_version.py
+++ b/cechmate/_version.py
@@ -1 +1 @@
-__version__ = "0.0.10"
+__version__ = "0.1.0"
diff --git a/setup.py b/setup.py
index 6436e8e..f154946 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@
         'scipy',
         'numpy',
         'matplotlib',
-        'phat',
+        'phat==1.5.0a0',
         'persim'
       ],
       extras_require={ # use `pip install -e ".[testing]"`