diff --git a/buildSrc/src/main/kotlin/gradle.java-common-conventions.gradle.kts b/buildSrc/src/main/kotlin/gradle.java-common-conventions.gradle.kts
index 669fae76..1d4df0d5 100644
--- a/buildSrc/src/main/kotlin/gradle.java-common-conventions.gradle.kts
+++ b/buildSrc/src/main/kotlin/gradle.java-common-conventions.gradle.kts
@@ -6,20 +6,24 @@ repositories {
     mavenCentral()
 }
 
+val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+
 dependencies {
     constraints {
     }
 
-    compileOnly("org.projectlombok:lombok:1.18.32")
-    annotationProcessor("org.projectlombok:lombok:1.18.32")
-    testCompileOnly("org.projectlombok:lombok:1.18.32")
-    testAnnotationProcessor("org.projectlombok:lombok:1.18.32")
+    implementation(libs.findLibrary("jacoco-core").get())
 
-    testImplementation("org.junit.jupiter:junit-jupiter:5.12.1")
+    compileOnly(libs.findLibrary("lombok").get())
+    annotationProcessor(libs.findLibrary("lombok").get())
+    testCompileOnly(libs.findLibrary("lombok").get())
+    testAnnotationProcessor(libs.findLibrary("lombok").get())
+
+    testImplementation(libs.findLibrary("junit-jupiter").get())
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 
-    implementation("org.slf4j:slf4j-api:2.0.7")
-    implementation("org.slf4j:slf4j-simple:2.0.7")
+    implementation(libs.findLibrary("slf4j-api").get())
+    implementation(libs.findLibrary("slf4j-simple").get())
 }
 
 java {
diff --git a/discussion/index.ndjson b/discussion/index.ndjson
index 66dc07bf..85c6e4a0 100644
--- a/discussion/index.ndjson
+++ b/discussion/index.ndjson
@@ -21,3 +21,4 @@
 {"type":"discussion","id":"DSC-0020","status":"done","ticket":"studio-editor-indentation-policy-and-project-setup","title":"Indentation Policy, Status-Bar Semantics, and Project-Local Editor Setup","created_at":"2026-04-04","updated_at":"2026-04-04","tags":["studio","editor","indentation","tabs","setup","dot-studio","configuration","ux"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0033","file":"discussion/lessons/DSC-0020-studio-editor-indentation-policy-and-project-setup/LSN-0033-setup-owned-indentation-policy-and-project-bootstrap-defaults.md","status":"done","created_at":"2026-04-04","updated_at":"2026-04-04"}]}
 {"type":"discussion","id":"DSC-0021","status":"done","ticket":"studio-frontend-editor-write-and-save-wave","title":"Enable Frontend Editing and Save in the Studio Code Editor","created_at":"2026-04-04","updated_at":"2026-04-06","tags":["studio","editor","frontend","write","save","vfs","lsp","pbs","access-policy"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0036","file":"discussion/lessons/DSC-0021-studio-frontend-editor-write-and-save-wave/LSN-0036-vfs-owned-frontend-edit-and-save-wave.md","status":"done","created_at":"2026-04-06","updated_at":"2026-04-06"}]}
 {"type":"discussion","id":"DSC-0022","status":"done","ticket":"studio-play-stop-cartridge-flow","title":"Wire the Studio Play/Stop button to shipper phase 1 cartridge preparation and runtime execution","created_at":"2026-04-06","updated_at":"2026-04-07","tags":["studio","play-stop","shipper","runtime","cartridge","shell"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0022","file":"discussion/lessons/DSC-0022-studio-play-stop-and-debugger-integration/LSN-0022-studio-play-stop-and-debugger-integration.md","status":"done","created_at":"2026-04-07","updated_at":"2026-04-07"}]}
+{"type":"discussion","id":"DSC-0023","status":"done","ticket":"gradle-version-catalog-migration","title":"Move dependency version management to Version Catalog (TOML)","created_at":"2026-04-07","updated_at":"2026-04-07","tags":["gradle","buildSrc","dependency-management","version-catalog"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0037","file":"discussion/lessons/DSC-0023-gradle-version-catalog-migration/LSN-0037-gradle-version-catalog-adoption.md","status":"done","created_at":"2026-04-07","updated_at":"2026-04-07"}]}
diff --git a/discussion/lessons/DSC-0023-gradle-version-catalog-migration/LSN-0037-gradle-version-catalog-adoption.md b/discussion/lessons/DSC-0023-gradle-version-catalog-migration/LSN-0037-gradle-version-catalog-adoption.md
new file mode 100644
index 00000000..3207d300
--- /dev/null
+++ b/discussion/lessons/DSC-0023-gradle-version-catalog-migration/LSN-0037-gradle-version-catalog-adoption.md
@@ -0,0 +1,40 @@
+# LSN-0037: Gradle Version Catalog for Dependency Management
+
+## Original Problem
+Dependency versions were scattered across the project, including hardcoded strings in `buildSrc` conventions and `build.gradle.kts` files. This fragmentation made maintenance difficult and prevented a clear overview of external dependencies.
+
+## Consolidated Decision
+Adopt `gradle/libs.versions.toml` (Version Catalog) as the single source of truth for all external dependencies and versions in the `prometeu-studio` repository.
+
+## Final Implementation
+1.  **Version Catalog Definition**: Centralized all external libraries in `gradle/libs.versions.toml` under the `[versions]` and `[libraries]` sections.
+2.  **buildSrc Access**: Configured `buildSrc` to consume the same catalog by using the `VersionCatalogsExtension` in the `gradle.java-common-conventions.gradle.kts` file.
+3.  **Convention Refactoring**: Updated Java common conventions to use `libs.findLibrary(...).get()` for resolving dependencies from the catalog.
+
+### Example: Using Catalog in buildSrc (Kotlin DSL)
+Since `buildSrc` is a separate build, the type-safe accessors (like `libs.lombok`) are not automatically generated in the same way as in the main project modules. We use the following pattern:
+
+```kotlin
+val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+
+dependencies {
+    implementation(libs.findLibrary("lombok").get())
+}
+```
+
+## Examples and Usage
+In standard modules (`build.gradle.kts`), use the type-safe accessors provided by Gradle:
+
+```kotlin
+dependencies {
+    implementation(libs.javafx.controls)
+}
+```
+
+## Common Pitfalls
+- **buildSrc Visibility**: Direct access like `libs.libraryName` might fail in `buildSrc` if the catalog isn't properly shared or if the accessor isn't generated for the `buildSrc` context. Using `VersionCatalogsExtension` is the most robust way to share it.
+- **Naming Consistency**: Ensure library aliases in TOML follow a clear pattern (e.g., `slf4j-api` vs `slf4jApi`) to keep the build scripts readable.
+
+## References
+- [DEC-0023-gradle-version-catalog-adoption.md](../../workflow/decisions/DEC-0023-gradle-version-catalog-adoption.md)
+- [PLN-0046-implement-gradle-version-catalog.md](../../workflow/plans/PLN-0046-implement-gradle-version-catalog.md)
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index f962385c..84d8cc26 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -2,6 +2,10 @@
 javafx = "23.0.2"
 richtextfx = "0.11.2"
 jackson = "2.18.2"
+jacoco = "0.8.12"
+lombok = "1.18.32"
+junit-jupiter = "5.12.1"
+slf4j = "2.0.7"
 
 [libraries]
 javafx-controls = { group = "org.openjfx", name = "javafx-controls", version.ref = "javafx" }
@@ -11,6 +15,11 @@ jackson-databind = { group = "com.fasterxml.jackson.core", name = "jackson-datab
 apache-commons-lang3 = { group = "org.apache.commons", name = "commons-lang3", version = "3.18.0" }
 apache-commons-io = { group = "commons-io", name = "commons-io", version = "2.13.0" }
 apache-commons-collections = { group = "org.apache.commons", name = "commons-collections4", version = "4.4" }
+jacoco-core = { group = "org.jacoco", name = "org.jacoco.core", version.ref = "jacoco" }
+lombok = { group = "org.projectlombok", name = "lombok", version.ref = "lombok" }
+junit-jupiter = { group = "org.junit.jupiter", name = "junit-jupiter", version.ref = "junit-jupiter" }
+slf4j-api = { group = "org.slf4j", name = "slf4j-api", version.ref = "slf4j" }
+slf4j-simple = { group = "org.slf4j", name = "slf4j-simple", version.ref = "slf4j" }
 
 [plugins]
 javafx = { id = "org.openjfx.javafxplugin", version = "0.1.0" }
diff --git a/prometeu-app/build.gradle.kts b/prometeu-app/build.gradle.kts
index 8292bbaa..253ad5e0 100644
--- a/prometeu-app/build.gradle.kts
+++ b/prometeu-app/build.gradle.kts
@@ -23,4 +23,4 @@ application {
 javafx {
     version = libs.versions.javafx.get()
     modules("javafx.controls", "javafx.fxml")
-}
+}
\ No newline at end of file