diff --git a/build.gradle b/build.gradle
index 4f8b337f..fc74a235 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@ plugins {
     id "java"
     id "maven-publish"
     id "signing"
-    id "org.embulk.embulk-plugins" version "0.5.5"
+    alias(libs.plugins.gradle.embulk.plugins)
     id "checkstyle"
 }
 
@@ -34,22 +34,22 @@ java {
 }
 
 dependencies {
-    compileOnly "org.embulk:embulk-spi:0.11"
-    compileOnly "org.slf4j:slf4j-api:2.0.7"
-
-    implementation "com.fasterxml.jackson.core:jackson-annotations:2.6.7"
-    implementation "com.fasterxml.jackson.core:jackson-core:2.6.7"
-    implementation "com.fasterxml.jackson.core:jackson-databind:2.6.7.5"
-    implementation "org.embulk:embulk-util-config:0.3.4"
-    implementation "org.embulk:embulk-util-file:0.1.5"
-    implementation "org.embulk:embulk-util-json:0.3.0"
-    implementation "org.embulk:embulk-util-timestamp:0.2.2"
-
-    testImplementation "junit:junit:4.13.2"
-    testImplementation "org.embulk:embulk-spi:0.11"
-    testImplementation "org.embulk:embulk-core:0.11.0"
-    testImplementation "org.embulk:embulk-deps:0.11.0"
-    testImplementation "org.embulk:embulk-junit4:0.11.0"
+    compileOnly libs.embulk.spi
+    compileOnly libs.slf4j
+
+    implementation libs.embulk.util.config
+    implementation libs.validation
+    implementation libs.bundles.jackson
+
+    implementation libs.embulk.util.file
+    implementation libs.embulk.util.json
+    implementation libs.embulk.util.timestamp
+
+    testImplementation libs.junit4
+    testImplementation libs.embulk.spi
+    testImplementation libs.embulk.core
+    testImplementation libs.embulk.deps
+    testImplementation libs.embulk.junit4
 }
 
 embulkPlugin {
@@ -76,6 +76,19 @@ javadocJar {
     }
 }
 
+// A safer and strict alternative to: "dependencies" (and "dependencies --write-locks")
+//
+// This task fails explicitly when the specified dependency is not available.
+// In contrast, "dependencies (--write-locks)" does not fail even when a part the dependencies are unavailable.
+//
+// https://docs.gradle.org/8.7/userguide/dependency_locking.html#generating_and_updating_dependency_locks
+task checkDependencies {
+    notCompatibleWithConfigurationCache("The task \"checkDependencies\" filters configurations at execution time.")
+    doLast {
+        configurations.findAll { it.canBeResolved }.each { it.resolve() }
+    }
+}
+
 publishing {
     publications {
          maven(MavenPublication) {
diff --git a/embulk-guess-json/build.gradle b/embulk-guess-json/build.gradle
index 8e5e8247..2aac0223 100644
--- a/embulk-guess-json/build.gradle
+++ b/embulk-guess-json/build.gradle
@@ -2,7 +2,7 @@ plugins {
     id "java"
     id "maven-publish"
     id "signing"
-    id "org.embulk.embulk-plugins" version "0.5.5"
+    alias(libs.plugins.gradle.embulk.plugins)
     id "checkstyle"
 }
 
@@ -34,11 +34,15 @@ java {
 }
 
 dependencies {
-    compileOnly "org.embulk:embulk-spi:0.11"
+    compileOnly libs.embulk.spi
+    compileOnly libs.slf4j
 
-    implementation "org.embulk:embulk-util-config:0.3.4"
-    implementation "org.embulk:embulk-util-file:0.1.5"
-    implementation "org.embulk:embulk-util-json:0.3.0"
+    implementation libs.embulk.util.config
+    implementation libs.validation
+    implementation libs.bundles.jackson
+
+    implementation libs.embulk.util.file
+    implementation libs.embulk.util.json
 }
 
 embulkPlugin {
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
new file mode 100644
index 00000000..78193dc5
--- /dev/null
+++ b/gradle/libs.versions.toml
@@ -0,0 +1,50 @@
+[versions]
+
+gradle-embulk-plugins = "0.7.0"
+
+embulk-spi = "0.11"
+slf4j-api = "2.0.7"
+
+embulk-util-config = "0.3.4"
+validation-api = "1.1.0.Final"
+
+jackson = "2.6.7"
+jackson-databind = "2.6.7.5"
+
+embulk-util-file = "0.1.5"
+embulk-util-json = "0.3.0"
+embulk-util-timestamp = "0.2.2"
+
+junit4 = "4.13.2"
+embulk-core = "0.11.0"
+
+[libraries]
+
+embulk-spi = { group = "org.embulk", name = "embulk-spi", version.ref = "embulk-spi" }
+slf4j = { group = "org.slf4j", name = "slf4j-api", version.ref = "slf4j-api" }
+embulk-util-config = { group = "org.embulk", name = "embulk-util-config", version.ref = "embulk-util-config" }
+embulk-util-file = { group = "org.embulk", name = "embulk-util-file", version.ref = "embulk-util-file" }
+embulk-util-json = { group = "org.embulk", name = "embulk-util-json", version.ref = "embulk-util-json" }
+embulk-util-timestamp = { group = "org.embulk", name = "embulk-util-timestamp", version.ref = "embulk-util-timestamp" }
+validation = { group = "javax.validation", name = "validation-api", version.ref = "validation-api" }
+jackson-annotations = { group = "com.fasterxml.jackson.core", name = "jackson-annotations", version.ref = "jackson" }
+jackson-core = { group = "com.fasterxml.jackson.core", name = "jackson-core", version.ref = "jackson" }
+jackson-databind = { group = "com.fasterxml.jackson.core", name = "jackson-databind", version.ref = "jackson-databind" }
+jackson-datatype-jdk8 = { group = "com.fasterxml.jackson.datatype", name = "jackson-datatype-jdk8", version.ref = "jackson" }
+junit4 = { group = "junit", name = "junit", version.ref = "junit4" }
+embulk-core = { group = "org.embulk", name = "embulk-core", version.ref = "embulk-core" }
+embulk-deps = { group = "org.embulk", name = "embulk-deps", version.ref = "embulk-core" }
+embulk-junit4 = { group = "org.embulk", name = "embulk-junit4", version.ref = "embulk-core" }
+
+[bundles]
+
+jackson = [
+  "jackson-annotations",
+  "jackson-core",
+  "jackson-databind",
+  "jackson-datatype-jdk8",
+]
+
+[plugins]
+
+gradle-embulk-plugins = { id = "org.embulk.embulk-plugins", version.ref = "gradle-embulk-plugins" }
diff --git a/settings-gradle.lockfile b/settings-gradle.lockfile
new file mode 100644
index 00000000..709a43f7
--- /dev/null
+++ b/settings-gradle.lockfile
@@ -0,0 +1,4 @@
+# This is a Gradle generated file for dependency locking.
+# Manual edits can break the build and are not advised.
+# This file is expected to be part of source control.
+empty=incomingCatalogForLibs0