diff --git a/PACKAGING.md b/PACKAGING.md
index b47d761..4c334e9 100644
--- a/PACKAGING.md
+++ b/PACKAGING.md
@@ -4,15 +4,9 @@ An executable can only be made on a Windows host because the PyInstaller tool (h
 
 1.) Install Python v3.11.x from https://www.python.org/.  To make life easier, check the option to add Python to the PATH environment variable.
 
-2.) Using pip, install pyinstaller, colorama, and idna:
+2.) Install Cygwin (https://www.cygwin.com/).
 
-```
-    pip install -U pyinstaller colorama idna
-```
-
-3.) Install Cygwin (https://www.cygwin.com/).
-
-4.) Create the executable with:
+3.) Install/update package dependencies and create the executable with:
 
 ```
     $ ./build_windows_executable.sh
diff --git a/build_windows_executable.sh b/build_windows_executable.sh
index 6127e93..009e7fe 100755
--- a/build_windows_executable.sh
+++ b/build_windows_executable.sh
@@ -48,15 +48,10 @@ if [[ "$(python -V)" != "Python 3."* ]]; then
     exit 1
 fi
 
-# Ensure that pyinstaller is installed.
-command -v pyinstaller >/dev/null 2>&1 || { echo >&2 "pyinstaller not found.  Install with: 'pip install pyinstaller'"; exit 1; }
-
-# Ensure that the colorama module is installed.
-X=$(pip show colorama 2>/dev/null)
-if [[ $? != 0 ]]; then
-    echo "Colorama module not found.  Install with: 'pip install colorama'"
-    exit 1
-fi
+# Install/update package dependencies.
+echo "Installing/updating pyinstaller, colorama, and idna packages..."
+pip install -U pyinstaller colorama idna
+echo
 
 # Prompt for the version to release.
 echo -n "Enter the version to release, using format 'vX.X.X': "