diff --git a/_service b/_service
index 93b8b6a..913a64a 100644
--- a/_service
+++ b/_service
@@ -3,7 +3,7 @@
   <service name="obs_scm" mode="manual">
     <param name="scm">git</param>
     <param name="url">https://github.com/harfbuzz/harfbuzz.git</param>
-    <param name="revision">10.3.0</param>
+    <param name="revision">10.4.0</param>
     <param name="versionformat">@PARENT_TAG@+@TAG_OFFSET@</param>
     <param name="versionrewrite-pattern">v?(.*)\+0</param>
     <param name="versionrewrite-replacement">\1</param>
diff --git a/harfbuzz-10.3.0.obscpio b/harfbuzz-10.3.0.obscpio
deleted file mode 100644
index 68e3c2b..0000000
--- a/harfbuzz-10.3.0.obscpio
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:33ab12e614303d9274946234d3097a42ef32bcb6f4c565d22268dfe611fbe85b
-size 98337806
diff --git a/harfbuzz-10.4.0.obscpio b/harfbuzz-10.4.0.obscpio
new file mode 100644
index 0000000..2c90b05
--- /dev/null
+++ b/harfbuzz-10.4.0.obscpio
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f0317ee2e53ed0ce605fd48ec1d2568c67850417fe892ab40a58067a1cd8c159
+size 96703502
diff --git a/harfbuzz.changes b/harfbuzz.changes
index 22f74ec..7be0b81 100644
--- a/harfbuzz.changes
+++ b/harfbuzz.changes
@@ -1,3 +1,22 @@
+-------------------------------------------------------------------
+Sat Mar  1 09:36:20 UTC 2025 - Bjørn Lie <bjorn.lie@gmail.com>
+
+- Update to version 10.4.0:
+  + Drawing glyphs using hb-draw API now avoids any “malloc” calls,
+    which improves drawing performance by 10+%.
+  + Add support new “GVAR” table fonts with more than 65535 glyphs.
+    Support is currently behind a compilation flag and is disabled
+    by default.
+  + Some hb-directwrite and hb-ft APIs got renamed with more clear
+    names and the old names are deprecated.
+  + Various build and fuzzing fixes.
+  + New API:
+    - +hb_directwrite_face_get_dw_font_face()
+    - +hb_ft_font_get_ft_face()
+  + Deprecated API:
+    - +hb_directwrite_face_get_font_face()
+    - +hb_ft_font_get_face()
+
 -------------------------------------------------------------------
 Fri Feb 21 10:38:24 UTC 2025 - Bjørn Lie <bjorn.lie@gmail.com>
 
diff --git a/harfbuzz.obsinfo b/harfbuzz.obsinfo
index ce740b0..c062d3c 100644
--- a/harfbuzz.obsinfo
+++ b/harfbuzz.obsinfo
@@ -1,4 +1,4 @@
 name: harfbuzz
-version: 10.3.0
-mtime: 1740088619
-commit: 694ffa874723e1f5a8552faedb101ddd072063be
+version: 10.4.0
+mtime: 1740783589
+commit: 3ef8709829a5884517ad91a97b32b9435b2f20d1
diff --git a/harfbuzz.spec b/harfbuzz.spec
index e8b1311..cc08b0b 100644
--- a/harfbuzz.spec
+++ b/harfbuzz.spec
@@ -18,7 +18,7 @@
 
 
 Name:           harfbuzz
-Version:        10.3.0
+Version:        10.4.0
 Release:        0
 Summary:        An OpenType text shaping engine
 License:        MIT