diff --git a/mold-1.0.2.tar.gz b/mold-1.0.2.tar.gz
deleted file mode 100644
index 377c0a0..0000000
--- a/mold-1.0.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1a5c4779d10c6c81d21092ea776504f51e6a4994121f536550c60a8e7bb6a028
-size 4501088
diff --git a/mold-1.0.3.tar.gz b/mold-1.0.3.tar.gz
new file mode 100644
index 0000000..97e71f0
--- /dev/null
+++ b/mold-1.0.3.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:488c12058b4c7c77bff94c6f919e40b2f12c304214e2e0d7d4833c21167837c0
+size 4501162
diff --git a/mold.changes b/mold.changes
index 180e376..c44a744 100644
--- a/mold.changes
+++ b/mold.changes
@@ -1,3 +1,14 @@
+-------------------------------------------------------------------
+Mon Jan 31 10:24:17 UTC 2022 - Martin Liška <mliska@suse.cz>
+
+- Start using system library mimalloc.
+
+-------------------------------------------------------------------
+Sun Jan 30 15:53:00 UTC 2022 - Martin Liška <mliska@suse.cz>
+
+- Update to version 1.0.3:
+  https://github.com/rui314/mold/releases/tag/v1.0.3.
+
 -------------------------------------------------------------------
 Sun Jan 23 09:44:13 UTC 2022 - Martin Liška <mliska@suse.cz>
 
diff --git a/mold.spec b/mold.spec
index 949b0e3..7fa4cd5 100644
--- a/mold.spec
+++ b/mold.spec
@@ -17,7 +17,7 @@
 
 
 Name:           mold
-Version:        1.0.2
+Version:        1.0.3
 Release:        0
 Summary:        A Modern Linker (mold)
 License:        AGPL-3.0-or-later
@@ -30,9 +30,10 @@ BuildRequires:  tbb-devel
 BuildRequires:  tbb-devel
 BuildRequires:  xxhash-devel
 BuildRequires:  zlib-devel
+BuildRequires:  mimalloc-devel
 PreReq:         update-alternatives
 
-%define build_args SYSTEM_TBB=1 SYSTEM_XXHASH=1
+%define build_args SYSTEM_TBB=1 SYSTEM_XXHASH=1 SYSTEM_MIMALLOC=1
 
 %description
 mold is a faster drop-in replacement for existing Unix linkers.