diff --git a/build.gradle b/build.gradle
index 363ddc6..389363c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -47,7 +47,7 @@ repositories {
 dependencies {
     // NOTE: groovy version included in Jenkins is 1.8.9
     runtime 'org.codehaus.groovy:groovy-all:1.8.9'
-    compile 'org.yaml:snakeyaml:1.16'
+    compile 'org.yaml:snakeyaml:1.26'
 
     testCompile 'org.spockframework:spock-core:0.7-groovy-1.8'
 
diff --git a/src/main/groovy/org/jenkinsci/plugins/yamlaxis/YamlFileLoader.groovy b/src/main/groovy/org/jenkinsci/plugins/yamlaxis/YamlFileLoader.groovy
index e6211c3..d0cd3f9 100644
--- a/src/main/groovy/org/jenkinsci/plugins/yamlaxis/YamlFileLoader.groovy
+++ b/src/main/groovy/org/jenkinsci/plugins/yamlaxis/YamlFileLoader.groovy
@@ -3,6 +3,7 @@ import groovy.transform.TupleConstructor
 import hudson.FilePath
 import hudson.Util
 import org.yaml.snakeyaml.Yaml
+import org.yaml.snakeyaml.constructor.SafeConstructor
 
 @TupleConstructor
 class YamlFileLoader extends YamlLoader {
@@ -17,7 +18,7 @@ class YamlFileLoader extends YamlLoader {
             return null
         }
 
-        Yaml yaml = new Yaml()
+        Yaml yaml = new Yaml(new SafeConstructor())
         InputStream input = createFilePath().read()
 
         try{
diff --git a/src/main/groovy/org/jenkinsci/plugins/yamlaxis/YamlTextLoader.groovy b/src/main/groovy/org/jenkinsci/plugins/yamlaxis/YamlTextLoader.groovy
index 787a5dc..a292940 100644
--- a/src/main/groovy/org/jenkinsci/plugins/yamlaxis/YamlTextLoader.groovy
+++ b/src/main/groovy/org/jenkinsci/plugins/yamlaxis/YamlTextLoader.groovy
@@ -1,6 +1,7 @@
 package org.jenkinsci.plugins.yamlaxis
 import groovy.transform.TupleConstructor
 import org.yaml.snakeyaml.Yaml
+import org.yaml.snakeyaml.constructor.SafeConstructor
 
 @TupleConstructor
 class YamlTextLoader extends YamlLoader {
@@ -10,7 +11,7 @@ class YamlTextLoader extends YamlLoader {
 
     @Override
     Map getContent() {
-        Yaml yaml = new Yaml()
+        Yaml yaml = new Yaml(new SafeConstructor())
         yaml.load(yamlText)
     }
 }