diff --git a/core/xz/checksums b/core/xz/checksums
index af1a894a..f6fb58b3 100644
--- a/core/xz/checksums
+++ b/core/xz/checksums
@@ -1 +1 @@
-7415d68cad3058c173f9e94ce7e047a2e7937d4598966d98a1b65ccdfe8986cb1e
+9ec211c5feb9580ec16b9da8ac14b7939ca91263a94d4227647f844f0a77b5a895
diff --git a/core/xz/sources b/core/xz/sources
index bb7e2cfc..3e9271c7 100644
--- a/core/xz/sources
+++ b/core/xz/sources
@@ -1 +1 @@
-https://excellmedia.dl.sourceforge.net/project/lzmautils/xz-5.6.3.tar.gz
+https://excellmedia.dl.sourceforge.net/project/lzmautils/xz-5.6.4.tar.gz
diff --git a/core/xz/version b/core/xz/version
index ec69dd6f..47f3f2a7 100644
--- a/core/xz/version
+++ b/core/xz/version
@@ -1 +1 @@
-5.6.3 1
+5.6.4 1