diff --git a/gradle.properties b/gradle.properties
index c65ea39f94..b60fa2f805 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -21,7 +21,6 @@ artifactIdGradle=spotless-plugin-gradle
 
 # Build requirements
 VER_JAVA=11
-VER_SPOTBUGS=4.7.3
 VER_JSR_305=3.0.2
 
 # Dependencies provided by Spotless plugin
diff --git a/gradle/java-setup.gradle b/gradle/java-setup.gradle
index 5a1e23ef0a..b152097653 100644
--- a/gradle/java-setup.gradle
+++ b/gradle/java-setup.gradle
@@ -14,11 +14,14 @@ tasks.withType(JavaCompile).configureEach {
 //////////////
 apply plugin: 'com.github.spotbugs'
 spotbugs {
-	toolVersion = VER_SPOTBUGS
 	ignoreFailures = false 	// bug free or it doesn't ship!
 	reportLevel = 'medium'	// low|medium|high (low = sensitive to even minor mistakes)
 	omitVisitors = [
-		'FindReturnRef'] // https://spotbugs.readthedocs.io/en/latest/detectors.html#findreturnref
+		// https://spotbugs.readthedocs.io/en/latest/detectors.html#constructorthrow
+		'ConstructorThrow',
+		// https://spotbugs.readthedocs.io/en/latest/detectors.html#findreturnref
+		'FindReturnRef',
+	]
 }
 tasks.named('spotbugsTest') {
 	enabled = false
@@ -30,16 +33,10 @@ tasks.withType(com.github.spotbugs.snom.SpotBugsTask).configureEach {
 	reports {
 		html.enabled = true
 	}
-	notCompatibleWithConfigurationCache("https://github.com/spotbugs/spotbugs-gradle-plugin/issues/670")
 }
 
-tasks.named('spotbugsMain') {
-	reports {
-		html.enabled = true
-	}
-}
 dependencies {
 	compileOnly 'net.jcip:jcip-annotations:1.0'
-	compileOnly "com.github.spotbugs:spotbugs-annotations:${VER_SPOTBUGS}"
+	compileOnly "com.github.spotbugs:spotbugs-annotations:${spotbugs.toolVersion.get()}"
 	compileOnly "com.google.code.findbugs:jsr305:${VER_JSR_305}"
 }
diff --git a/lib-extra/build.gradle b/lib-extra/build.gradle
index 07135ff726..e6524f76bf 100644
--- a/lib-extra/build.gradle
+++ b/lib-extra/build.gradle
@@ -56,16 +56,16 @@ for (needsP2 in NEEDS_P2_DEPS) {
 		add("${needsP2}CompileOnly", "dev.equo.ide:solstice:${VER_SOLSTICE}")
 	}
 }
-jar {
+
+def jar = tasks.named('jar', Jar) {
 	for (needsP2 in NEEDS_P2_DEPS) {
-		from sourceSets.getByName(needsP2).output.classesDirs
+		from sourceSets.named(needsP2).map { it.output.classesDirs }
 	}
 }
+
 tasks.withType(Test).configureEach {
 	dependsOn jar
-	doFirst {
-		classpath += jar.outputs.files
-	}
+	classpath += jar.get().outputs.files
 }
 
 apply plugin: 'dev.equo.p2deps'
diff --git a/settings.gradle b/settings.gradle
index e7b9649cf3..e7e5a6d4ea 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -12,7 +12,7 @@ plugins {
 	// https://github.com/gradle-nexus/publish-plugin/releases
 	id 'io.github.gradle-nexus.publish-plugin' version '1.3.0' apply false
 	// https://github.com/spotbugs/spotbugs-gradle-plugin/releases
-	id 'com.github.spotbugs' version '5.2.1' apply false
+	id 'com.github.spotbugs' version '5.2.3' apply false
 	// https://github.com/diffplug/spotless-changelog/blob/main/CHANGELOG.md
 	id 'com.diffplug.spotless-changelog' version '3.0.2' apply false
 	// https://github.com/diffplug/goomph/blob/main/CHANGES.md