diff --git a/.github/workflows/examples.yml b/.github/workflows/examples.yml
index 1446307..3c4b1b9 100644
--- a/.github/workflows/examples.yml
+++ b/.github/workflows/examples.yml
@@ -14,13 +14,13 @@ jobs:
           - "examples/arduino-multiprocessing-message"
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: "recursive"
       - name: Set up Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v5
         with:
-          python-version: "3.9"
+          python-version: "3.10"
       # On Linux, wxPython ("needed" for flash_writer.py)
       # has a dependency on GTK+. Install it here.
       # the tool just uses it to show a EULA dialog,
diff --git a/builder/main.py b/builder/main.py
index c076258..d117c45 100644
--- a/builder/main.py
+++ b/builder/main.py
@@ -318,6 +318,14 @@ def __configure_upload_port(env):
 # Install wxPython dependency of tool-spresense
 #
 def install_python_deps():
+    # check if dependencies are installed by just importing them
+    try:
+        import wx
+        import wx.html
+        return
+    except ImportError:
+        print("Spresense tools's Python dependencies (wxPython) not yet installed.")
+        pass
     def _get_installed_pip_packages():
         result = {}
         packages = {}
@@ -341,8 +349,7 @@ def _get_installed_pip_packages():
         return result
 
     deps = {
-        "attrdict3": "==2.0.2",
-        "wxPython": "==4.2.0"
+        "wxPython": "==4.2.1"
     }
 
     installed_packages = _get_installed_pip_packages()