diff --git a/.gitignore b/.gitignore
index d8465f4..2c78c52 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /jcommander-1.45.tar.gz
 /jcommander-1.47.tar.gz
 /jcommander-1.56.tar.gz
+/1.57.tar.gz
diff --git a/sources b/sources
index 0e86206..7bbf1d8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-10a0875ba5b270e79cf594eeb6c153c5  jcommander-1.56.tar.gz
+5bca8ac3082ec35970083e47d539c40f  1.57.tar.gz