diff --git a/libs/grok/build.gradle b/libs/grok/build.gradle
index ca3634805195d..b7ae54e54c3af 100644
--- a/libs/grok/build.gradle
+++ b/libs/grok/build.gradle
@@ -20,7 +20,7 @@
 dependencies {
     compile 'org.jruby.joni:joni:2.1.6'
     // joni dependencies:
-    compile 'org.jruby.jcodings:jcodings:1.0.12'
+    compile 'org.jruby.jcodings:jcodings:1.0.44'
 
     if (isEclipse == false || project.path == ":libs:elasticsearch-grok-tests") {
         testCompile(project(":test:framework")) {
diff --git a/libs/grok/licenses/jcodings-1.0.12.jar.sha1 b/libs/grok/licenses/jcodings-1.0.12.jar.sha1
deleted file mode 100644
index b097e32ece493..0000000000000
--- a/libs/grok/licenses/jcodings-1.0.12.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-6bc17079fcaa8823ea8cd0d4c66516335b558db8
\ No newline at end of file
diff --git a/libs/grok/licenses/jcodings-1.0.44.jar.sha1 b/libs/grok/licenses/jcodings-1.0.44.jar.sha1
new file mode 100644
index 0000000000000..4449009d3395e
--- /dev/null
+++ b/libs/grok/licenses/jcodings-1.0.44.jar.sha1
@@ -0,0 +1 @@
+a6884b2fd8fd9a56874db05afaa22435043a2e3e
\ No newline at end of file