diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 2872fbd..0690410 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -14,9 +14,6 @@ jobs:
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
         architecture: ["x64"]
-        include:
-          - python-version: "3.8"
-            numpy-version: "1.26.4"
     steps:
     - uses: actions/checkout@v2
     - name: Setup Python ${{ matrix.python-version }} on ${{ matrix.architecture }}
@@ -24,7 +21,19 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
         architecture: ${{ matrix.architecture }}
+    - name: Cache pip 3.8
+      if: matrix.python-version == 3.8
+      uses: actions/cache@v2
+      with:
+        # This path is specific to Ubuntu
+        path: ~/.cache/pip
+        # Look to see if there is a cache hit for the corresponding requirements file
+        key: ${{ runner.os }}-pip-${{ hashFiles('requirements.txt') }}-${{ hashFiles('requirements-dev3.8.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+          ${{ runner.os }}-
     - name: Cache pip
+      if: matrix.python-version != 3.8
       uses: actions/cache@v2
       with:
         # This path is specific to Ubuntu
@@ -40,10 +49,11 @@ jobs:
         # workaround for 3.12, SEE: https://github.com/pypa/setuptools/issues/3661#issuecomment-1813845177
         pip install --upgrade setuptools
     - name: Install dependencies
+      if: matrix.python-version != 3.8
       run: pip install -r requirements-dev.txt
-    - name: Install Numpy Old
-      if: ${{ matrix.numpy-version }}
-      run: pip install -I --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple "numpy>=0.0.dev0" 
+    - name: Install dependencies
+      if: matrix.python-version == 3.8
+      run: pip install -r requirements-dev3.8.txt
     - name: Lint with flake8
       if: matrix.python-version == 3.12
       run: |
diff --git a/requirements-dev.txt b/requirements-dev.txt
index cbe348b..673b74d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,9 +9,9 @@ pytest==8.2.2
 pytest-cov==5.0.0
 python-dotenv==1.0.1
 watchdog>=4.0.1
-Sphinx==7.3.7  # We use the html style that is not supported in Sphinx 7 anymore.
+Sphinx==6.2.1  # We use the html style that is not supported in Sphinx 7 anymore.
 sphinx-sitemap==2.6.0
-sphinxemoji>=0.3.1
+sphinxemoji==0.2.0
 flake8==7.1.0
 python-dateutil==2.9.0.post0
 orjson==3.10.5