diff --git a/gradle/dependencies.gradle b/gradle/dependencies.gradle
index 75d9387cd4..6dfaf3d7f6 100644
--- a/gradle/dependencies.gradle
+++ b/gradle/dependencies.gradle
@@ -1,4 +1,4 @@
-def groovyVer = "2.5.3"
+def groovyVer = "2.5.6"
 def spockGroovyVer = groovyVer.replaceAll(/\.\d+$/, '')
 
 ext {
@@ -9,7 +9,7 @@ ext {
     guava      : "20.0", // Last version to support Java 7
     jackson    : "2.9.8", // https://nvd.nist.gov/vuln/detail/CVE-2018-1000873
 
-    spock      : "1.2-groovy-$spockGroovyVer",
+    spock      : "1.3-groovy-$spockGroovyVer",
     groovy     : groovyVer,
     junit      : "4.12",
     logback    : "1.2.3",