diff --git a/build-constraints.yaml b/build-constraints.yaml
index b1c119c3..7d9e4627 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1351,11 +1351,11 @@ packages:
         - ghc-typelits-extra
         - ghc-typelits-knownnat
         - ghc-typelits-natnormalise
-        #- clash-prelude
-        #- clash-lib
-        #- clash-vhdl
-        #- clash-verilog
-        #- clash-systemverilog
+        - clash-prelude
+        - clash-lib
+        - clash-vhdl
+        - clash-verilog
+        - clash-systemverilog
         # GHC 8 - clash-ghc
 
     "Athan Clark <athan.clark@gmail.com> @athanclark":