diff --git a/.gitignore b/.gitignore
index be07a0c..d8465f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /jcommander-1.35.tar.gz
 /jcommander-1.45.tar.gz
 /jcommander-1.47.tar.gz
+/jcommander-1.56.tar.gz
diff --git a/sources b/sources
index 84d8937..0e86206 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-05cf07c77ae4230d8246c25a35ffa735  jcommander-1.47.tar.gz
+10a0875ba5b270e79cf594eeb6c153c5  jcommander-1.56.tar.gz