diff --git a/versions.lock b/versions.lock
index 0e1d113..9b67f51 100644
--- a/versions.lock
+++ b/versions.lock
@@ -27,11 +27,11 @@ org.assertj:assertj-core:3.27.3 (1 constraints: 4105513b)
 org.codehaus.groovy:groovy:3.0.12 (2 constraints: 781b1f9d)
 org.hamcrest:hamcrest:2.2 (1 constraints: d20cdc04)
 org.hamcrest:hamcrest-core:1.3 (1 constraints: cc05fe3f)
-org.junit:junit-bom:5.11.4 (6 constraints: b05699c1)
-org.junit.jupiter:junit-jupiter-api:5.11.4 (2 constraints: 1c1a1c20)
-org.junit.jupiter:junit-jupiter-engine:5.11.4 (2 constraints: 7e0edf71)
-org.junit.platform:junit-platform-commons:1.11.4 (3 constraints: 722aa490)
-org.junit.platform:junit-platform-engine:1.11.4 (2 constraints: 141a2c1f)
+org.junit:junit-bom:5.12.0-M1 (6 constraints: f85924e0)
+org.junit.jupiter:junit-jupiter-api:5.12.0-M1 (2 constraints: 6c1b3eae)
+org.junit.jupiter:junit-jupiter-engine:5.12.0-M1 (2 constraints: ce0fa0c4)
+org.junit.platform:junit-platform-commons:1.12.0-M1 (3 constraints: 6a2c33df)
+org.junit.platform:junit-platform-engine:1.12.0-M1 (2 constraints: 641b2aad)
 org.objenesis:objenesis:2.4 (1 constraints: ea0c8c0a)
 org.opentest4j:opentest4j:1.3.0 (2 constraints: cf209249)
 org.spockframework:spock-core:2.3-groovy-3.0 (2 constraints: 922109a6)
diff --git a/versions.props b/versions.props
index abaf2f5..de1791e 100644
--- a/versions.props
+++ b/versions.props
@@ -5,6 +5,6 @@ com.google.guava:guava = 33.4.0-jre
 com.jakewharton.nopen:* = 1.0.1
 org.assertj:assertj-core = 3.27.3
 org.immutables:* = 2.10.1
-org.junit:junit-bom = 5.11.4
-org.junit.jupiter:junit-jupiter-engine = 5.11.4
+org.junit:junit-bom = 5.12.0-M1
+org.junit.jupiter:junit-jupiter-engine = 5.12.0-M1
 com.netflix.nebula:nebula-test = 10.6.2