diff --git a/build-constraints.yaml b/build-constraints.yaml
index 64e201f50..86b71d2b9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -43,7 +43,7 @@ packages:
 
     "Alexey Tochin <Alexey.Tochin@gmail.com> @alexeytochin":
         - simple-expr
-        - inf-backprop
+        - inf-backprop < 0
 
     "Felix Springer <felixspringer149@gmail.com> @jumper149":
         - deriving-trans
@@ -8054,6 +8054,7 @@ packages:
 
         # https://github.com/commercialhaskell/stackage/issues/7592
         - select-rpms < 0.2
+
     # end of Stackage upper bounds
 # end of packages
 
@@ -8667,7 +8668,6 @@ skipped-tests:
 
     # general failures
     - aern2-mp            # https://github.com/michalkonecny/aern2/issues/11
-    - inf-backprop # https://github.com/commercialhaskell/stackage/issues/7593
 
     # ???
     - chronos # 1.1.5.1 chronos-test:  executable not found