diff --git a/build-constraints.yaml b/build-constraints.yaml
index e1c1917d..5d67284e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1405,7 +1405,7 @@ packages:
     "Robert Klotzner <robert.klotzner@gmx.at> @eskimor":
         - purescript-bridge
         - servant-purescript < 0 # 0.10.0.0 compile fail #6091/closed
-        - servant-subscriber < 0 # fails with aeson
+        - servant-subscriber < 0 # 0.7.0.0 fails with aeson https://github.com/eskimor/servant-subscriber/issues/25
 
     "Rodrigo Setti <rodrigosetti@gmail.com> @rodrigosetti":
         - messagepack
@@ -1874,7 +1874,7 @@ packages:
         - gtk3
         - ghcjs-codemirror
         - ghcjs-dom
-        - jsaddle < 0 # fails https://github.com/commercialhaskell/stackage/issues/7249
+        - jsaddle < 0 # 0.9.8.3 fails https://github.com/commercialhaskell/stackage/issues/7249
         - vado
         - vcswrapper
         - ShellCheck
@@ -3141,7 +3141,7 @@ packages:
         - scanner
 
     "Stanislav Chernichkin <schernichkin@gmail.com> @schernichkin":
-        - partial-isomorphisms < 0 # failure https://github.com/commercialhaskell/stackage/issues/7248
+        - partial-isomorphisms < 0 # 0.2.3.0 failure https://github.com/commercialhaskell/stackage/issues/7248
 
     "Christoph Breitkopf <chbreitkopf@gmail.com> @bokesan":
         - IntervalMap