diff --git a/.github/workflows/update-license.yml b/.github/workflows/update-license.yml
index 77df7c0..3b2f09d 100644
--- a/.github/workflows/update-license.yml
+++ b/.github/workflows/update-license.yml
@@ -3,6 +3,7 @@ name: License
 
 on: # yamllint disable-line rule:truthy
   schedule:
+    # Every January 1st at 14:00 JST
     - cron: "0 5 1 1 *"
 
 jobs:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 3d9ba02..85ad655 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -26,7 +26,7 @@ repos:
       - id: detect-secrets
         stages: ["pre-commit", "pre-push"]
   - repo: https://github.com/gitleaks/gitleaks
-    rev: v8.21.3
+    rev: v8.22.1
     hooks:
       - id: gitleaks
         stages: ["pre-commit", "pre-push"]
diff --git a/build.gradle b/build.gradle
index d3747d9..23ab3c9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,7 +13,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.google.guava:guava:33.3.1-jre'
+    implementation 'com.google.guava:guava:33.4.0-jre'
     implementation 'org.apache.groovy:groovy-all:4.0.24'
     testImplementation 'org.spockframework:spock-core:2.4-M4-groovy-4.0'
 }