diff --git a/build-constraints.yaml b/build-constraints.yaml
index e4b8ff4c..7aa5ca37 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1969,13 +1969,13 @@ packages:
 
     "Karun Ramakrishnan karun012@gmail.com @karun012":
         - doctest-discover
-        
+
     "Elie Genard <elaye.github.io@gmail.com> @eliegenard":
         - turtle-options
 
     "Ruey-Lin Hsu <petercommand@gmail.com> @petercommand":
         - MASMGen
-        
+
     "Ozgun Ataman ozgun.ataman@soostone.com @ozataman":
         - string-conv
         - rng-utils
@@ -2034,10 +2034,6 @@ packages:
         # https://github.com/fpco/stackage/issues/1227
         - diagrams-svg < 1.4
 
-        # https://github.com/fpco/stackage/issues/1238
-        - path-io < 1.0.0
-        - plan-b < 0.1.1
-
         # https://github.com/fpco/stackage/issues/1240
         - cryptohash < 0.11.7