diff --git a/metadata/com.foobnix.pro.pdf.reader.yml b/metadata/com.foobnix.pro.pdf.reader.yml
index 41542ee4e6..f66b0e339e 100644
--- a/metadata/com.foobnix.pro.pdf.reader.yml
+++ b/metadata/com.foobnix.pro.pdf.reader.yml
@@ -835,7 +835,7 @@ Builds:
     gradle:
       - fdroid
     srclibs:
-      - MuPDF@1.23.3
+      - MuPDF@1.23.5
     rm:
       - Builder/src/libs
     prebuild:
@@ -844,26 +844,21 @@ Builds:
       - mkdir src/main/jniLibs
       - cd ../Builder
       - sed -i -e '/^#!/a\set -e' -e '/git clone/d' -e 's/mkdir/mkdir -p/g' -e 's|".*ndk-build"|"$$NDK$$/ndk-build"|'
-        -e 's|^.*ndk-build$|$$NDK$$/ndk-build -j`nproc`|' link_to_mupdf_1.23.3.sh
-      - cp -r $$MuPDF$$ mupdf-1.23.3
-      - rm -rf mupdf-1.23.3/thirdparty/{harfbuzz/test,curl/tests,leptonica/prog/fuzzing}
+        -e 's|^.*ndk-build$|$$NDK$$/ndk-build -j`nproc`|' link_to_mupdf_1.23.5.sh
+      - cp -r $$MuPDF$$ mupdf-1.23.5
+      - rm -rf mupdf-1.23.5/thirdparty/{harfbuzz/test,curl/tests,leptonica/prog/fuzzing}
     scanignore:
       - Builder/fonts/fonts.zip
       - app/src/fdroid/assets/fonts.zip
     build:
       - pushd ../Builder/
-      - ./link_to_mupdf_1.23.3.sh
-    ndk: r25c
+      - ./link_to_mupdf_1.23.5.sh
+    ndk: r26b
 
 MaintainerNotes: |-
   * Upstream builds separate APKs for each architecture but we build an universal APK.
   * scanner will detect GMS (/com/google/android/gms) in these APKs; those are only stubs here, see https://gitlab.com/fdroid/fdroiddata/-/issues/2272#note_493741256
 
-  * KnownVuln: MuPDF 1.11 noted at below link
-  * https://github.com/foobnix/LibreraReader/blob/8.8.5/app/src/main/java/com/foobnix/pdf/info/AppsConfig.java#L30
-  * app includes both MuPDF 1.11 as the default for legacy Android 4.0 compatibility
-  * https://gitlab.com/fdroid/fdroiddata/-/merge_requests/11496
-
 AutoUpdateMode: Version +-fdroid %v
 UpdateCheckMode: Tags
 UpdateCheckData: app/build.gradle|\s+FDroidCodeNumber = (\d+)|.|\s+FDroidVersionNumber