diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4efb8672..c4d70c3e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -65,7 +65,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ ubuntu-latest, macOS-latest, windows-latest ]
-        java: [ 8, 9, 10, 11, 12, 13, 14, 15, 16 ]
+        java: [ 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 ]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
diff --git a/build.gradle b/build.gradle
index 4d3d6b2d..7e9b74b2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,7 +25,7 @@ buildscript {
                 commons_text   : 'org.apache.commons:commons-text:1.10.0',
                 guava          : 'com.google.guava:guava:31.0.1-jre',
                 junit          : 'junit:junit:4.13.2',
-                proguard_gradle: 'com.guardsquare:proguard-gradle:7.1.1',
+                proguard_gradle: 'com.guardsquare:proguard-gradle:7.3.0',
                 snakeyaml      : 'org.yaml:snakeyaml:1.32:android',
                 smali          : 'com.github.iBotPeaches.smali:smali:403e90375e',
                 xmlpull        : 'xpp3:xpp3:1.1.4c',