diff --git a/metadata/uk.org.boddie.android.weatherforecast.yml b/metadata/uk.org.boddie.android.weatherforecast.yml
index 3352045eb8..be15ca8305 100644
--- a/metadata/uk.org.boddie.android.weatherforecast.yml
+++ b/metadata/uk.org.boddie.android.weatherforecast.yml
@@ -108,8 +108,17 @@ Builds:
         imagemagick pngquant python-cairosvg
     output: output.apk
     srclibs:
-      - duck@1.0.3
-    build: PYTHONPATH=$$duck$$ ./build.py output.apk
+      - duck-git@1.0.4
+    prebuild:
+      - pushd $$duck-git$$
+      - git reset --hard `cat ../../uk.org.boddie.android.weatherforecast/deps/DUCK`
+      - popd
+    build: PYTHONPATH=$$duck-git$$ ./build.py output.apk
+
+MaintainerNotes: |-
+    From version 1.3.0, the app handles its own dependencies during the build,
+    using the prebuild step to take a specific version of DUCK then update it
+    to the version given in the app's deps/DUCK file.
 
 AutoUpdateMode: Version %v
 UpdateCheckMode: HTTP
diff --git a/srclibs/duck-git.txt b/srclibs/duck-git.txt
new file mode 100644
index 0000000000..94fe388945
--- /dev/null
+++ b/srclibs/duck-git.txt
@@ -0,0 +1,2 @@
+Repo Type:git
+Repo:https://gitlab.com/dboddie/DUCK.git