diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Revision history for pgmq-hasql
 
+## 0.6.1.1 -- 2026-09-25
+
+Coordinated family version bump; the library is unchanged from 0.6.1.0.
+
+`MixedCaseRemediationSpec`, which starts its own cluster, now uses the same stable per-uid
+temporary root as the rest of the test suite instead of falling back to `$TMPDIR`, so a
+killed run's cluster is reaped by the next run. No library dependency changed.
+
 ## 0.6.1.0 -- 2026-09-16
 
 Coordinated family version bump; the library is unchanged from 0.6.0.0.
diff --git a/pgmq-hasql.cabal b/pgmq-hasql.cabal
--- a/pgmq-hasql.cabal
+++ b/pgmq-hasql.cabal
@@ -1,6 +1,6 @@
 cabal-version: 3.4
 name: pgmq-hasql
-version: 0.6.1.0
+version: 0.6.1.1
 synopsis: Hasql-based client for PGMQ (PostgreSQL Message Queue)
 description:
   A Haskell client library for PGMQ (PostgreSQL Message Queue) built
diff --git a/test/EphemeralDb.hs b/test/EphemeralDb.hs
--- a/test/EphemeralDb.hs
+++ b/test/EphemeralDb.hs
@@ -5,6 +5,7 @@
   ( -- * Database setup
     withPgmqDb,
     withPgmqPool,
+    ephemeralConfig,
 
     -- * Test fixtures
     TestFixture (..),
diff --git a/test/MixedCaseRemediationSpec.hs b/test/MixedCaseRemediationSpec.hs
--- a/test/MixedCaseRemediationSpec.hs
+++ b/test/MixedCaseRemediationSpec.hs
@@ -34,6 +34,7 @@
     migrationPlan,
     runMigrationPlan,
   )
+import EphemeralDb (ephemeralConfig)
 import EphemeralPg qualified as Pg
 import Hasql.Decoders qualified as D
 import Hasql.Pool qualified as Pool
@@ -274,7 +275,8 @@
 
 acquireDb :: IO (Pg.Database, Pool.Pool)
 acquireDb = do
-  started <- Pg.startCached Pg.defaultConfig Pg.defaultCacheConfig
+  config <- ephemeralConfig
+  started <- Pg.startCached config Pg.defaultCacheConfig
   db <- either (\err -> error ("could not start a dedicated PostgreSQL: " <> show err)) pure started
   component <- either (error . ("Invalid PGMQ migration component: " <>) . show) pure Migration.pgmqMigrations
   plan <- either (error . ("Invalid PGMQ migration plan: " <>) . show) pure (migrationPlan (component :| []))