diff --git a/asciidoctorj-core/src/main/java/org/asciidoctor/jruby/log/internal/JavaLogger.java b/asciidoctorj-core/src/main/java/org/asciidoctor/jruby/log/internal/JavaLogger.java
index 22394669f..0c812b7fa 100644
--- a/asciidoctorj-core/src/main/java/org/asciidoctor/jruby/log/internal/JavaLogger.java
+++ b/asciidoctorj-core/src/main/java/org/asciidoctor/jruby/log/internal/JavaLogger.java
@@ -19,6 +19,7 @@
 import org.jruby.runtime.builtin.IRubyObject;
 
 import java.util.Objects;
+import java.util.Optional;
 
 public class JavaLogger extends RubyObject {
 
@@ -94,10 +95,12 @@ private LogRecord createLogRecord(final ThreadContext threadContext,
                                     final Severity severity,
                                     final Cursor cursor,
                                     final String message) {
-    BacktraceElement[] backtrace = threadContext.getBacktrace();
-    final String sourceFileName = backtrace[2].getFilename();
-    final String sourceMethodName = backtrace[2].getMethod();
-    final LogRecord record = new LogRecord(severity, cursor, message, sourceFileName, sourceMethodName);
+    final Optional<BacktraceElement> elem = threadContext.getBacktrace(0)
+            .skip(1)
+            .findFirst();
+
+    final String sourceFileName = elem.map(BacktraceElement::getFilename).orElse(null);
+    final String sourceMethodName = elem.map(BacktraceElement::getMethod).orElse(null);    final LogRecord record = new LogRecord(severity, cursor, message, sourceFileName, sourceMethodName);
     return record;
   }
 
diff --git a/build.gradle b/build.gradle
index 3de206c60..285b73baf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -45,7 +45,7 @@ ext {
   guavaVersion = '18.0'
   hamcrestVersion = '1.3'
   jcommanderVersion = '1.35'
-  jrubyVersion = '9.2.5.0'
+  jrubyVersion = '9.2.6.0'
   jsoupVersion = '1.10.2'
   junitVersion = '4.12'
   nettyVersion = '4.0.33.Final'