diff --git a/build-constraints.yaml b/build-constraints.yaml
index 88d6a554..959adc9c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1234,22 +1234,20 @@ packages:
         - refact
         - servant-pandoc
 
-    # https://github.com/gibiansky/IHaskell/issues/548
-    #"Andrew Gibiansky <andrew.gibiansky@gmail.com> @gibiansky":
-        #- ihaskell
-        #- ihaskell-aeson
-        #- ihaskell-basic
-        #- ihaskell-blaze
-        #- ihaskell-charts
-        #- ihaskell-diagrams
-        #- ihaskell-hatex
-        #- ihaskell-juicypixels
-        ## https://github.com/fpco/stackage/issues/741
-        ##- ihaskell-magic
-        #- ihaskell-rlangqq
-        #- ihaskell-static-canvas
-        #- ghc-parser
-        #- ipython-kernel
+    "Andrew Gibiansky <andrew.gibiansky@gmail.com> @gibiansky":
+        - ihaskell
+        - ihaskell-aeson
+        - ihaskell-basic
+        - ihaskell-blaze
+        - ihaskell-charts
+        - ihaskell-diagrams
+        - ihaskell-hatex
+        - ihaskell-juicypixels
+        - ihaskell-magic
+        - ihaskell-rlangqq
+        - ihaskell-static-canvas
+        - ghc-parser
+        - ipython-kernel
 
     "Andrés Sicard-Ramírez <asr@eafit.edu.co> @asr":
         - Agda