diff --git a/aeson b/aeson
index d231dbae..793d73ba 160000
--- a/aeson
+++ b/aeson
@@ -1 +1 @@
-Subproject commit d231dbaeb3988b8b9b02f59f1f8beab28bb48652
+Subproject commit 793d73bae1ec419f38d18fb360758a18f14fe723
diff --git a/install-all.sh b/install-all.sh
index e1b3ada6..94d6e556 100755
--- a/install-all.sh
+++ b/install-all.sh
@@ -30,13 +30,15 @@ for pkg in "${pkgs[@]}"; do
   (
     cd "./$pkg"
 
-    if ! $CABAL configure --enable-tests; then
+    if ! $CABAL configure --enable-tests --ghc-options="-Wall -Werror"; then
       $CABAL install --only-dependencies
-      $CABAL configure --enable-tests
+      $CABAL configure --enable-tests --ghc-options="-Wall -Werror"
     fi
 
     $CABAL build
     $CABAL test
+    $CABAL check
+    $CABAL haddock --executables
     ./Setup.lhs install
   )
 done