diff --git a/build-constraints.yaml b/build-constraints.yaml
index 748c3ed2..4ca654ae 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1937,6 +1937,9 @@ packages:
         - pandoc
         - pandoc-citeproc
 
+    "Karun Ramakrishnan karun012@gmail.com @karun012":
+        - doctest-discover
+
     # If you stop maintaining a package you can move it here.
     # It will then be disabled if it starts causing problems.
     "Abandoned packages":
@@ -1973,8 +1976,8 @@ packages:
         # https://github.com/fpco/stackage/issues/1215
         - argon < 0.4.1.0
 
-    "Karun Ramakrishnan karun012@gmail.com @karun012":
-        - doctest-discover
+        # https://github.com/Twinside/rasterific-svg/issues/2
+        - svg-tree < 0.3.2.2
 
 # end of packages