diff --git a/build.gradle b/build.gradle
index 8ca7c9bb..c95665cd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,6 +3,7 @@ plugins {
     id "signing"
     id "io.github.gradle-nexus.publish-plugin" version "2.0.0"
     id "dex2jar.build-conventions"
+    alias libs.plugins.versions
 }
 
 description = 'Supermodule for dex2jar'
diff --git a/buildSrc/src/main/groovy/dex2jar.build-conventions.gradle b/buildSrc/src/main/groovy/dex2jar.build-conventions.gradle
index d58525ed..d0081a8d 100644
--- a/buildSrc/src/main/groovy/dex2jar.build-conventions.gradle
+++ b/buildSrc/src/main/groovy/dex2jar.build-conventions.gradle
@@ -4,15 +4,6 @@ plugins {
     id 'signing'
 }
 
-ext.antlr3Version = '3.5.3'
-ext.antlr4Version = '4.13.1'
-ext.asmVersion = '9.7'
-ext.baksmaliVersion = '3.0.7'
-ext.commonsCompressVersion = '1.26.2'
-ext.jUnitVersion = '5.10.3'
-ext.jUnitPlatformVersion = '1.10.3'
-ext.r8Version = '4.0.63' // Newer versions only for Java 11+
-
 group = 'de.femtopedia.dex2jar'
 version = project.findProperty('version')
 version = version == null || version == 'unspecified' ? '2.4-SNAPSHOT' : version
@@ -41,8 +32,8 @@ javadoc {
 }
 
 dependencies {
-    testImplementation "org.junit.jupiter:junit-jupiter:${project.property('jUnitVersion')}"
-    testRuntimeOnly("org.junit.platform:junit-platform-launcher:${project.property('jUnitPlatformVersion')}")
+    testImplementation libs.junit.jupiter
+    testRuntimeOnly libs.junit.platform.launcher
 }
 
 [compileJava, compileTestJava]*.options.collect { options ->
diff --git a/d2j-jasmin/build.gradle b/d2j-jasmin/build.gradle
index 6f508985..c615bbd8 100644
--- a/d2j-jasmin/build.gradle
+++ b/d2j-jasmin/build.gradle
@@ -6,19 +6,19 @@ plugins {
 description = "Jasmin support for dex2jar"
 
 dependencies {
-    api(group: 'org.antlr', name: 'antlr-runtime', version: project.property('antlr3Version')) {
+    api(libs.antlr3.runtime) {
         exclude(module: 'stringtemplate')
     }
     api project(path: ':d2j-external', configuration: 'shadow')
-    // api group: 'org.ow2.asm', name: 'asm', version: project.property('asmVersion') // Fixed MethodCodeTooLargeException
-    api(group: 'org.ow2.asm', name: 'asm-tree', version: project.property('asmVersion')) {
+    // api libs.asm // Fixed MethodCodeTooLargeException
+    api(libs.asm.tree) {
         exclude(module: 'asm')
     }
-    api(group: 'org.ow2.asm', name: 'asm-util', version: project.property('asmVersion')) {
+    api(libs.asm.util) {
         exclude(module: 'asm')
     }
     api project(':d2j-base-cmd')
-    antlr "org.antlr:antlr:${project.property('antlr3Version')}"
+    antlr libs.antlr3
 }
 
 sourceSets.main.antlr.srcDirs = ['src/main/antlr3']
diff --git a/d2j-smali/build.gradle b/d2j-smali/build.gradle
index f8a909e8..101a636d 100644
--- a/d2j-smali/build.gradle
+++ b/d2j-smali/build.gradle
@@ -6,13 +6,13 @@ plugins {
 description = "Smali support for dex2jar"
 
 dependencies {
-    api "org.antlr:antlr4-runtime:${project.property('antlr4Version')}"
+    api libs.antlr4.runtime
     api project(':dex-reader-api')
     api project(':dex-reader')
-    antlr "org.antlr:antlr4:${project.property('antlr4Version')}"
+    antlr libs.antlr4
     api project(':d2j-base-cmd')
     api project(':dex-writer')
-    testImplementation "com.android.tools.smali:smali-baksmali:${project.property('baksmaliVersion')}"
+    testImplementation libs.baksmali
 }
 
 generateGrammarSource {
diff --git a/dex-reader-api/build.gradle b/dex-reader-api/build.gradle
index 45d715a6..f313874d 100644
--- a/dex-reader-api/build.gradle
+++ b/dex-reader-api/build.gradle
@@ -6,5 +6,5 @@ description = 'Dex/Dalvik reader API for dex2jar'
 
 dependencies {
     api project(path: ':d2j-external', configuration: 'shadow')
-    // api group: 'org.ow2.asm', name: 'asm', version: project.property('asmVersion') // Fixed MethodCodeTooLargeException
+    // api libs.asm // Fixed MethodCodeTooLargeException
 }
diff --git a/dex-reader/build.gradle b/dex-reader/build.gradle
index ae195792..1b1aed02 100644
--- a/dex-reader/build.gradle
+++ b/dex-reader/build.gradle
@@ -6,5 +6,5 @@ description = 'Dex/Dalvik reader for dex2jar'
 
 dependencies {
     api project(':dex-reader-api')
-    testImplementation(group: 'org.apache.commons', name: 'commons-compress', version: project.property('commonsCompressVersion'))
+    testImplementation libs.commons.compress
 }
diff --git a/dex-tools/build.gradle b/dex-tools/build.gradle
index cb54dc91..62ca6a18 100644
--- a/dex-tools/build.gradle
+++ b/dex-tools/build.gradle
@@ -12,17 +12,17 @@ dependencies {
     api project(':dex-writer')
     api project(':d2j-base-cmd')
     api project(path: ':d2j-external', configuration: 'shadow')
-    // api group: 'org.ow2.asm', name: 'asm', version: project.property('asmVersion') // Fixed MethodCodeTooLargeException
-    api(group: 'org.ow2.asm', name: 'asm-tree', version: project.property('asmVersion')) {
+    // api libs.asm // Fixed MethodCodeTooLargeException
+    api(libs.asm.tree) {
         exclude(module: 'asm')
     }
-    api(group: 'org.ow2.asm', name: 'asm-util', version: project.property('asmVersion')) {
+    api(libs.asm.util) {
         exclude(module: 'asm')
     }
-    api(group: 'org.ow2.asm', name: 'asm-commons', version: project.property('asmVersion')) {
+    api(libs.asm.commons) {
         exclude(module: 'asm')
     }
-    testImplementation "org.antlr:antlr-runtime:${project.property('antlr3Version')}"
+    testImplementation libs.antlr3.runtime
 }
 
 tasks.register('bin_gen', JavaExec) {
diff --git a/dex-translator/build.gradle b/dex-translator/build.gradle
index bd07da72..021f934e 100644
--- a/dex-translator/build.gradle
+++ b/dex-translator/build.gradle
@@ -10,14 +10,14 @@ dependencies {
     api project(':dex-ir')
     api project(':d2j-base-cmd')
     api project(path: ':d2j-external', configuration: 'shadow')
-    // api group: 'org.ow2.asm', name: 'asm', version: project.property('asmVersion') // Fixed MethodCodeTooLargeException
-    api(group: 'org.ow2.asm', name: 'asm-tree', version: project.property('asmVersion')) {
+    // api libs.asm // Fixed MethodCodeTooLargeException
+    api(libs.asm.tree) {
         exclude(module: 'asm')
     }
-    api(group: 'org.ow2.asm', name: 'asm-util', version: project.property('asmVersion')) {
+    api(libs.asm.util) {
         exclude(module: 'asm')
     }
-    api(group: 'org.ow2.asm', name: 'asm-commons', version: project.property('asmVersion')) {
+    api(libs.asm.commons) {
         exclude(module: 'asm')
     }
     testImplementation project(':d2j-smali')
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
new file mode 100644
index 00000000..270de81c
--- /dev/null
+++ b/gradle/libs.versions.toml
@@ -0,0 +1,27 @@
+[versions]
+antlr3 = '3.5.3'
+antlr4 = '4.13.1'
+asm = '9.7'
+smali = '3.0.7'
+commons-compress = '1.26.2'
+junit = '5.10.3'
+junit-platform = '1.10.3'
+r8 = '4.0.63' # Newer versions only for Java 11+
+versions-plugin = '0.51.0'
+
+[libraries]
+antlr3 = { module = "org.antlr:antlr", version.ref = "antlr3" }
+antlr3-runtime = { module = "org.antlr:antlr-runtime", version.ref = "antlr3" }
+antlr4 = { module = "org.antlr:antlr4", version.ref = "antlr4" }
+antlr4-runtime = { module = "org.antlr:antlr4-runtime", version.ref = "antlr4" }
+asm-commons = { module = "org.ow2.asm:asm-commons", version.ref = "asm" }
+asm-tree = { module = "org.ow2.asm:asm-tree", version.ref = "asm" }
+asm-util = { module = "org.ow2.asm:asm-util", version.ref = "asm" }
+baksmali = { module = "com.android.tools.smali:smali-baksmali", version.ref = "smali" }
+commons-compress = { module = "org.apache.commons:commons-compress", version.ref = "commons-compress" }
+junit-jupiter = { module = "org.junit.jupiter:junit-jupiter", version.ref = "junit" }
+junit-platform-launcher = { module = "org.junit.platform:junit-platform-launcher", version.ref = "junit-platform" }
+r8 = { module = "com.android.tools:r8", version.ref = "r8" }
+
+[plugins]
+versions = { id = "com.github.ben-manes.versions", version.ref = "versions-plugin" }