diff --git a/nix/build-support/stacklock2nix/cabal2nixArgsForPkg.nix b/nix/build-support/stacklock2nix/cabal2nixArgsForPkg.nix
index 5815867..f1f39ac 100644
--- a/nix/build-support/stacklock2nix/cabal2nixArgsForPkg.nix
+++ b/nix/build-support/stacklock2nix/cabal2nixArgsForPkg.nix
@@ -125,7 +125,17 @@ cabal2nixArgsOverrides {
     else
       {};
 
-  "test-framework" = ver: { libxml = pkgs.libxml; };
+  "test-framework" = ver:
+    # All versions of test-framework before 0.8.2.2 required the libxml package,
+    # but 0.8.2.2 and later don't require this.
+    if pkgs.lib.versionAtLeast ver "0.8.2.2" then
+      {}
+    else
+      # TODO: Eh, this isn't quite correct.  test-framework requires the libxml
+      # haskell package, which should be pulling in and propagating the libxml
+      # system package.  I don't know how this was ever working, but it does
+      # seem to work.
+      { libxml = pkgs.libxml; };
 
   "termonad" = ver: { vte_291 = pkgs.vte; gtk3 = pkgs.gtk3; pcre2 = pkgs.pcre2;};
 
diff --git a/nix/build-support/stacklock2nix/suggestedOverlay.nix b/nix/build-support/stacklock2nix/suggestedOverlay.nix
index eded1bb..c96fa30 100644
--- a/nix/build-support/stacklock2nix/suggestedOverlay.nix
+++ b/nix/build-support/stacklock2nix/suggestedOverlay.nix
@@ -65,6 +65,9 @@ hfinal: hprev: with haskell.lib.compose; {
   # doctests fail
   bsb-http-chunked = dontCheck hprev.bsb-http-chunked;
 
+  # tests don't work when run with nix
+  call-stack = dontCheck hprev.call-stack;
+
   # Tests don't include all necessary files.
   c2hs = dontCheck hprev.c2hs;
 
@@ -75,6 +78,7 @@ hfinal: hprev: with haskell.lib.compose; {
 
   colour = dontCheck hprev.colour;
 
+  # circular dep in tests
   doctest = dontCheck hprev.doctest;
 
   doctest-parallel = dontCheck hprev.doctest-parallel;
@@ -200,16 +204,22 @@ hfinal: hprev: with haskell.lib.compose; {
   # circular dependency in tests
   options = dontCheck hprev.options;
 
+  # circular dependency in tests
+  optparse-applicative = dontCheck hprev.optparse-applicative;
+
   # tests require postgres running
   pg-transact = dontCheck hprev.pg-transact;
 
   # Tests run for a really long time, and also require a broken package.
   prettyprinter = dontCheck hprev.prettyprinter;
 
+  # circular dependency in tests
+  prettyprinter-ansi-terminal = dontCheck hprev.prettyprinter-ansi-terminal;
+
   random = dontCheck hprev.random;
 
-  # Disabling doctests.
-  regex-tdfa = overrideCabal { testTarget = "regex-tdfa-unittest"; } hprev.regex-tdfa;
+  # Some tests don't work.
+  regex-tdfa = dontCheck hprev.regex-tdfa;
 
   # the rio test suite calls functions from unliftio that are broken:
   # https://github.com/fpco/unliftio/issues/87
@@ -249,6 +259,7 @@ hfinal: hprev: with haskell.lib.compose; {
   # requires a version of chell that is not in the stackage resolver
   system-filepath = dontCheck hprev.system-filepath;
 
+  # circular dep in tests
   tasty = dontCheck hprev.tasty;
 
   tasty-discover =
@@ -262,6 +273,9 @@ hfinal: hprev: with haskell.lib.compose; {
 
   tasty-expected-failure = dontCheck hprev.tasty-expected-failure;
 
+  # circular dep in tests
+  temporary = dontCheck hprev.temporary;
+
   test-framework = dontCheck hprev.test-framework;
 
   # requires a version of tasty that is not in the stackage resolver