diff --git a/build/linux/flatpak/org.gimp.GIMP-nightly.json b/build/linux/flatpak/org.gimp.GIMP-nightly.json
index b8e2bd9514..e4424e5cda 100644
--- a/build/linux/flatpak/org.gimp.GIMP-nightly.json
+++ b/build/linux/flatpak/org.gimp.GIMP-nightly.json
@@ -242,8 +242,8 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": "https://poppler.freedesktop.org/poppler-26.03.0.tar.xz",
-                    "sha256": "8b3c5e2a9f2ab4c3ec5029f28af1b433c6b71f0d1e7b3997aa561cf1c0ca4ebe",
+                    "url": "https://poppler.freedesktop.org/poppler-26.04.0.tar.xz",
+                    "sha256": "b0955163114af96bc0106f68cb24daf973a629462453d8b82775f81b0d4e0693",
                     "x-checker-data": {
                         "type": "anitya",
                         "project-id": 3686,