diff --git a/org.gimp.GIMP.json b/org.gimp.GIMP.json
index b4b134ef..a9245968 100644
--- a/org.gimp.GIMP.json
+++ b/org.gimp.GIMP.json
@@ -167,8 +167,8 @@
                     "sources": [
                         {
                             "type": "archive",
-                            "url": "https://github.com/ibus/ibus/releases/download/1.5.30/ibus-1.5.30.tar.gz",
-                            "sha256": "05b84d4a45139face161596e5ade8e6c5da55cfaf6f194861da66516190f5b96",
+                            "url": "https://github.com/ibus/ibus/releases/download/1.5.28/ibus-1.5.28.tar.gz",
+                            "sha256": "6c9ff3a7576c3d61264f386030f47ee467eb7298c8104367002986e008765667",
                             "x-checker-data": {
                                 "type": "anitya",
                                 "project-id": 1352,