diff --git a/build.gradle b/build.gradle
index ef6a571d..224ac349 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,6 +9,7 @@ buildscript {
         classpath 'com.palantir.jakartapackagealignment:jakarta-package-alignment:0.6.0'
         classpath 'com.palantir.gradle.jdks:gradle-jdks:0.58.0'
         classpath 'com.palantir.gradle.jdkslatest:gradle-jdks-latest:0.16.0'
+        classpath 'com.palantir.gradle.plugintesting:gradle-plugin-testing:0.2.0'
         classpath 'org.unbroken-dome.gradle-plugins:gradle-testsets-plugin:4.1.0'
         classpath 'com.palantir.gradle.externalpublish:gradle-external-publish-plugin:1.19.0'
         classpath 'com.palantir.javaformat:gradle-palantir-java-format:2.50.0'
diff --git a/gradle-jdks-groovy/build.gradle b/gradle-jdks-groovy/build.gradle
index 7dfb7e43..aefee148 100644
--- a/gradle-jdks-groovy/build.gradle
+++ b/gradle-jdks-groovy/build.gradle
@@ -1,6 +1,7 @@
 apply plugin: 'java-gradle-plugin'
 apply plugin: 'groovy'
 apply plugin: 'com.palantir.external-publish-jar'
+apply plugin: 'com.palantir.gradle-plugin-testing'
 
 
 dependencies {
diff --git a/gradle-jdks-settings/build.gradle b/gradle-jdks-settings/build.gradle
index 1f0768de..83953f78 100644
--- a/gradle-jdks-settings/build.gradle
+++ b/gradle-jdks-settings/build.gradle
@@ -1,6 +1,7 @@
 apply plugin: 'java-gradle-plugin'
 apply plugin: 'groovy'
 apply plugin: 'com.palantir.external-publish-jar'
+apply plugin: 'com.palantir.gradle-plugin-testing'
 apply plugin: 'com.palantir.external-publish-gradle-plugin'
 apply plugin: 'com.palantir.shadow-jar'
 
diff --git a/gradle-jdks/build.gradle b/gradle-jdks/build.gradle
index ec104262..0da2ab74 100644
--- a/gradle-jdks/build.gradle
+++ b/gradle-jdks/build.gradle
@@ -1,6 +1,7 @@
 apply plugin: 'java-gradle-plugin'
 apply plugin: 'groovy'
 apply plugin: 'com.palantir.external-publish-jar'
+apply plugin: 'com.palantir.gradle-plugin-testing'
 apply plugin: 'com.palantir.external-publish-gradle-plugin'
 apply plugin: 'org.unbroken-dome.test-sets'
 
diff --git a/versions.lock b/versions.lock
index 48604d04..0be19f80 100644
--- a/versions.lock
+++ b/versions.lock
@@ -7,7 +7,7 @@ com.github.ben-manes.caffeine:caffeine:3.1.8 (2 constraints: d216c42c)
 com.google.code.findbugs:jsr305:3.0.2 (2 constraints: 1d0fb186)
 com.google.errorprone:error_prone_annotations:2.28.0 (3 constraints: ae1f4750)
 com.google.guava:failureaccess:1.0.2 (2 constraints: f2152a13)
-com.google.guava:guava:33.3.1-jre (5 constraints: 2f541b9d)
+com.google.guava:guava:33.3.1-jre (6 constraints: 586c4384)
 com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava (1 constraints: bd17c918)
 com.google.inject:guice:5.1.0 (1 constraints: e20b61f3)
 com.google.j2objc:j2objc-annotations:3.0.0 (1 constraints: 150aeab4)
@@ -60,6 +60,7 @@ org.slf4j:slf4j-api:1.7.36 (4 constraints: 4b4a7558)
 [Test dependencies]
 cglib:cglib-nodep:3.2.2 (1 constraints: 490ded24)
 com.netflix.nebula:nebula-test:10.6.1 (1 constraints: 3a053a3b)
+com.palantir.gradle.plugintesting:plugin-testing-core:0.2.0 (1 constraints: 0405f135)
 junit:junit:4.13.2 (1 constraints: 1b0e1d4c)
 net.bytebuddy:byte-buddy:1.15.4 (2 constraints: c916c650)
 net.bytebuddy:byte-buddy-agent:1.15.4 (1 constraints: 450b45de)