diff --git a/modules/component-driver.nix b/modules/component-driver.nix
index 4495f6a458..402b44911d 100644
--- a/modules/component-driver.nix
+++ b/modules/component-driver.nix
@@ -77,6 +77,8 @@ in
     ++ lib.optionals (builtins.compareVersions config.compiler.version "8.11" >= 0) [
       # stm and exceptions are needed by the GHC package since 9.0.1
       "stm" "exceptions"]
+    ++ lib.optionals (builtins.compareVersions config.compiler.version "9.8.1" >= 0) [
+      "semaphore-compat"]
     )
     ++ lib.optionals (!config.reinstallableLibGhc || __elem config.compiler.nix-name ["ghc865"]) [
       "ghc-heap"
diff --git a/test/plugin/default.nix b/test/plugin/default.nix
index d0a969ed90..c5bb06787b 100644
--- a/test/plugin/default.nix
+++ b/test/plugin/default.nix
@@ -6,6 +6,9 @@ let
   project = project' {
     inherit compiler-nix-name evalPackages;
     src = testSrc "plugin";
+    modules = [{
+      reinstallableLibGhc = builtins.compareVersions buildPackages.haskell-nix.compiler.${compiler-nix-name}.version "9.8.1" < 0;
+    }];
   };
 
   packages = project.hsPkgs;
@@ -17,8 +20,7 @@ in recurseIntoAttrs {
 
   # Not sure why this breaks for ghc 8.10.7
   meta.disabled = compiler-nix-name == "ghc8107"
-    # TODO remove once polysemy works with ghc 9.8.1
-    || __compareVersions buildPackages.haskell-nix.compiler.${compiler-nix-name}.version "9.8.1" >= 0
+    || compiler-nix-name == "ghc9920231203"
     || stdenv.hostPlatform.isMusl
     || stdenv.hostPlatform.isGhcjs
     || stdenv.hostPlatform.isWindows