diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2a67c7ffcbfb..2314f65225a9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -97,12 +97,14 @@ jobs:
           Linux)
             echo 'Acquire::Retries "3";' | sudo tee /etc/apt/apt.conf.d/80-retries
             sudo apt-get update -yy
-            sudo apt-get install -yy \
+            sudo apt-get install -yy --no-install-recommends \
               ccache \
               cm-super \
               dvipng \
               ffmpeg \
+              fonts-freefont-otf \
               fonts-noto-cjk \
+              fonts-wqy-zenhei \
               gdb \
               gir1.2-gtk-3.0 \
               graphviz \
@@ -123,8 +125,6 @@ jobs:
               libxcb-render-util0 \
               libxcb-xinerama0 \
               lmodern \
-              fonts-freefont-otf \
-              texlive-pictures \
               pkg-config \
               qtbase5-dev \
               texlive-fonts-recommended \
@@ -132,12 +132,13 @@ jobs:
               texlive-latex-extra \
               texlive-latex-recommended \
               texlive-luatex \
-              texlive-xetex \
-              ttf-wqy-zenhei
+              texlive-pictures \
+              texlive-xetex
             if [[ "${{ matrix.os }}" = ubuntu-20.04 ]]; then
-              sudo apt-get install -yy libopengl0
+              sudo apt-get install -yy --no-install-recommends libopengl0
             else  # ubuntu-22.04
-              sudo apt-get install -yy gir1.2-gtk-4.0 libnotify4
+              sudo apt-get install -yy --no-install-recommends \
+                gir1.2-gtk-4.0 libnotify4
             fi
             ;;
           macOS)
@@ -178,10 +179,10 @@ jobs:
             ~/.cache/matplotlib
             !~/.cache/matplotlib/tex.cache
             !~/.cache/matplotlib/test_cache
-          key: 3-${{ runner.os }}-py${{ matrix.python-version }}-mpl-${{ github.ref }}-${{ github.sha }}
+          key: 4-${{ runner.os }}-py${{ matrix.python-version }}-mpl-${{ github.ref }}-${{ github.sha }}
           restore-keys: |
-            3-${{ runner.os }}-py${{ matrix.python-version }}-mpl-${{ github.ref }}-
-            3-${{ runner.os }}-py${{ matrix.python-version }}-mpl-
+            4-${{ runner.os }}-py${{ matrix.python-version }}-mpl-${{ github.ref }}-
+            4-${{ runner.os }}-py${{ matrix.python-version }}-mpl-
 
       - name: Install Python dependencies
         run: |
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index bb38804ae121..7d00e499fd18 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -92,11 +92,12 @@ stages:
           linux)
             echo 'Acquire::Retries "3";' | sudo tee /etc/apt/apt.conf.d/80-retries
             sudo apt update
-            sudo apt install \
+            sudo apt install --no-install-recommends \
               cm-super \
               dvipng \
               ffmpeg \
               fonts-noto-cjk \
+              fonts-wqy-zenhei \
               gdb \
               gir1.2-gtk-3.0 \
               graphviz \
@@ -111,8 +112,8 @@ stages:
               texlive-latex-base \
               texlive-latex-extra \
               texlive-latex-recommended \
-              texlive-xetex texlive-luatex \
-              ttf-wqy-zenhei
+              texlive-luatex \
+              texlive-xetex
             ;;
           darwin)
             brew install --cask xquartz