diff --git a/libs/grok/build.gradle b/libs/grok/build.gradle
index e406a80ee1c91..86414d18108a1 100644
--- a/libs/grok/build.gradle
+++ b/libs/grok/build.gradle
@@ -29,7 +29,7 @@
  */
 
 dependencies {
-  api 'org.jruby.joni:joni:2.1.41'
+  api 'org.jruby.joni:joni:2.1.43'
   // joni dependencies:
   api 'org.jruby.jcodings:jcodings:1.0.57'
 
diff --git a/libs/grok/licenses/joni-2.1.41.jar.sha1 b/libs/grok/licenses/joni-2.1.41.jar.sha1
deleted file mode 100644
index 4f0a0a8393dd0..0000000000000
--- a/libs/grok/licenses/joni-2.1.41.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-4a35f4eaef792073bc081b756b1f4949879cd41e
\ No newline at end of file
diff --git a/libs/grok/licenses/joni-2.1.43.jar.sha1 b/libs/grok/licenses/joni-2.1.43.jar.sha1
new file mode 100644
index 0000000000000..ef5dfabb2b391
--- /dev/null
+++ b/libs/grok/licenses/joni-2.1.43.jar.sha1
@@ -0,0 +1 @@
+9a3bf154469d5ff1d1107755904279081a5fb618
\ No newline at end of file