diff --git a/nix/cimake.sh b/nix/cimake.sh
index af637c7..eb48357 100755
--- a/nix/cimake.sh
+++ b/nix/cimake.sh
@@ -31,6 +31,11 @@ export NIX_CONFIG=$(cat \
       index-state = "2021-07-01T00:00:00Z";
       ghc-ver = "ghc901";
     };
+    hackage-9-02 = {
+      resolver = "hackage";
+      index-state = "2021-11-01T00:00:00Z";
+      ghc-ver = "ghc921";
+    };
     stackage-8-06 = {
       resolver = "stackage";
       stackFile = "stack-8.6.yaml";
diff --git a/pqueue.cabal b/pqueue.cabal
index e40c51c..e2f0d96 100644
--- a/pqueue.cabal
+++ b/pqueue.cabal
@@ -12,7 +12,7 @@ maintainer:         Lennart Spitzner <hexagoxel@hexagoxel.de>
 bug-reports:        https://github.com/lspitzner/pqueue/issues
 build-type:         Simple
 cabal-version:      >= 1.10
-tested-with:        GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.7, GHC == 9.0.1
+tested-with:        GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.7, GHC == 9.0.1, GHC == 9.2.1
 extra-source-files:
   include/Typeable.h
   CHANGELOG.md
@@ -26,7 +26,7 @@ library
   default-language:
     Haskell2010
   build-depends:
-  { base >= 4.8 && < 4.16
+  { base >= 4.8 && < 4.17
   , deepseq >= 1.3 && < 1.5
   }
   exposed-modules:
@@ -60,7 +60,7 @@ test-Suite test
   type: exitcode-stdio-1.0
   main-is: PQueueTests.hs
   build-depends:
-  { base >= 4.8 && < 4.16
+  { base >= 4.8 && < 4.17
   , deepseq >= 1.3 && < 1.5
   , QuickCheck >= 2.5 && < 3
   , pqueue