diff --git a/build-constraints.yaml b/build-constraints.yaml
index c67ed8e5..ee3310a4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1043,7 +1043,7 @@ packages:
         - partial-handler
         - postgresql-binary
         # - slave-thread # GHC 8.2.1
-        # - stm-containers # GHC 8.2.1
+        - stm-containers
         - refined
 
     "Iustin Pop <iustin@k1024.org> @iustin":
@@ -2042,10 +2042,10 @@ packages:
         - microlens-contra
         - shortcut-links
         - cheapskate-lucid
-        # - cheapskate-highlight # GHC 8.2.1
+        - cheapskate-highlight
         - cmark-lucid
-        # - cmark-highlight # GHC 8.2.1
-        # - Spock-lucid # GHC 8.2.1
+        - cmark-highlight
+        - Spock-lucid
         - charsetdetect-ae
         - ilist
         - text-all