diff --git a/build-constraints.yaml b/build-constraints.yaml
index f2dca1a6..fef8cda7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5665,7 +5665,6 @@ packages:
         - swagger2 < 0 # tried swagger2-2.6, but its *library* does not support: template-haskell-2.17.0.0
         - sweet-egison < 0 # tried sweet-egison-0.1.1.3, but its *library* requires the disabled package: egison-pattern-src
         - sweet-egison < 0 # tried sweet-egison-0.1.1.3, but its *library* requires the disabled package: egison-pattern-src-th-mode
-        - swish < 0 # tried swish-0.10.0.4, but its *library* does not support: base-4.15.0.0
         - sydtest < 0 # tried sydtest-0.2.0.0, but its *library* requires the disabled package: path
         - sydtest-discover < 0 # tried sydtest-discover-0.0.0.0, but its *library* requires the disabled package: path
         - sydtest-persistent-sqlite < 0 # tried sydtest-persistent-sqlite-0.1.0.0, but its *library* requires the disabled package: sydtest