diff --git a/core/spring-security-core2.gradle b/core/spring-security-core2.gradle
index b05472f..4b9572c 100644
--- a/core/spring-security-core2.gradle
+++ b/core/spring-security-core2.gradle
@@ -8,3 +8,7 @@ dependencies {
 	testCompile 'org.assertj:assertj-core'
 	testCompile 'org.mockito:mockito-core'
 }
+
+jacoco {
+	toolVersion = '0.8.5'
+}
diff --git a/crypto/spring-security-crypto2.gradle b/crypto/spring-security-crypto2.gradle
index e95743d..9194f61 100644
--- a/crypto/spring-security-crypto2.gradle
+++ b/crypto/spring-security-crypto2.gradle
@@ -9,3 +9,7 @@ dependencies {
 	testCompile 'org.assertj:assertj-core'
 	testCompile 'org.mockito:mockito-core'
 }
+
+jacoco {
+	toolVersion = '0.8.5'
+}
diff --git a/jose/spring-security-oauth2-jose2.gradle b/jose/spring-security-oauth2-jose2.gradle
index 6ab2ad0..ed224ce 100644
--- a/jose/spring-security-oauth2-jose2.gradle
+++ b/jose/spring-security-oauth2-jose2.gradle
@@ -12,3 +12,7 @@ dependencies {
 	testCompile 'org.assertj:assertj-core'
 	testCompile 'org.mockito:mockito-core'
 }
+
+jacoco {
+	toolVersion = '0.8.5'
+}