diff --git a/core/xz/checksums b/core/xz/checksums
index ed9f45f1..af1a894a 100644
--- a/core/xz/checksums
+++ b/core/xz/checksums
@@ -1 +1 @@
-116d3b5d5c643b297fce5474f431ef6895a980c6d3b102615b0f4561547638437f
+7415d68cad3058c173f9e94ce7e047a2e7937d4598966d98a1b65ccdfe8986cb1e
diff --git a/core/xz/sources b/core/xz/sources
index ab0e35f8..bb7e2cfc 100644
--- a/core/xz/sources
+++ b/core/xz/sources
@@ -1 +1 @@
-https://excellmedia.dl.sourceforge.net/project/lzmautils/xz-5.6.2.tar.gz
+https://excellmedia.dl.sourceforge.net/project/lzmautils/xz-5.6.3.tar.gz
diff --git a/core/xz/version b/core/xz/version
index 35143381..ec69dd6f 100644
--- a/core/xz/version
+++ b/core/xz/version
@@ -1 +1 @@
-5.6.2 1
+5.6.3 1