diff --git a/.weeder.yaml b/.weeder.yaml
index 2611a27..559f2dd 100644
--- a/.weeder.yaml
+++ b/.weeder.yaml
@@ -1,10 +1,20 @@
 # It would be good to not need this
 # https://github.com/ndmitchell/weeder/issues/24
 
+- package:
+  - name: dejafu
+  - section:
+    - name: library
+    - message:
+      - name: Redundant build-depends entry
+      - depends: semigroups
 - package:
   - name: dejafu-tests
   - section:
     - name: exe:dejafu-tests
+    - message:
+      - name: Redundant build-depends entry
+      - depends: transformers
     - message:
       - name: Weeds exported
       - module: