diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 98dfd9d..c25a25b 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -1,46 +1,32 @@
-# https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
-
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#name
 name: CI
 
-on:
-  push:
-    branches: [ master ]
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#on
+on: [push]
 
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobs
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-
-    # https://github.com/actions/checkout
-    - name: Set up git
-      uses: actions/checkout@v2
-
-    # https://github.com/actions/setup-java
-    - name: Set up java
-      uses: actions/setup-java@v1
-      with:
-        java-version: 11
-
-    # https://github.com/actions/cache
-    - name: Set up cache
-      uses: actions/cache@v2
-      with:
-        path: |
-          .gradle
-          build
-        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
-        restore-keys: ${{ runner.os }}-gradle
-
-    # https://github.com/gradle/gradle
-    - name: Build with Gradle
-      env:
-        JAVA_OPTS: '-Dorg.gradle.daemon=false'
-        GRADLE_USER_HOME: .gradle
-      run: chmod +x gradlew && ./gradlew build
-
-    # https://github.com/peaceiris/actions-gh-pages
-    - name: Deploy preview
-      uses: peaceiris/actions-gh-pages@v3
-      with:
-        github_token: ${{ secrets.GITHUB_TOKEN }}
-        publish_dir:  pages
+      # https://github.com/actions/checkout
+      - uses: actions/checkout@v3
+
+      # https://github.com/actions/setup-java
+      # https://github.com/actions/cache
+      - uses: actions/setup-java@v3
+        with:
+          distribution: "temurin"
+          java-version: "11"
+          cache: "gradle"
+
+      # https://github.com/gradle/gradle
+      - name: Build with Gradle
+        run: chmod +x gradlew && ./gradlew build
+
+      # https://github.com/peaceiris/actions-gh-pages
+      - if: ${{ github.ref == 'refs/heads/master' }}
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: pages
diff --git a/build.gradle b/build.gradle
index f0c2d0f..0c0ec43 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,7 +20,7 @@ repositories {
 }
 
 dependencies {
-  asciidoctorGems 'rubygems:rouge:3.28.0'
+  asciidoctorGems 'rubygems:rouge:3.30.0'
 }
 
 // tag::adoc[]
@@ -29,10 +29,10 @@ asciidoctorj {
   requires file('src/main/ruby/glob-include-processor.rb')
   modules {
     diagram { 
-      version '2.2.1'
+      version '2.2.3'
     }
     pdf { 
-      version '1.6.2'
+      version '2.3.3'
     }
   }
   logLevel 'INFO'
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 41d9927..943f0cb 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 41dfb87..f398c33 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 1b6c787..65dcd68 100644
--- a/gradlew
+++ b/gradlew
@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,10 +80,10 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
@@ -143,12 +143,16 @@ fi
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -205,6 +209,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
diff --git a/gradlew.bat b/gradlew.bat
index 107acd3..93e3f59 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal