diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 Versioning follows the [Haskell Package Versioning Policy](https://pvp.haskell.org/).
 
+## 0.1.1.2 — 2026-10-06
+
+### Fixed
+
+- Use released ephemeral-pg >=0.3.1 && <0.4 and one stable effective-uid temporary root shared by database fixtures and the example service, preserving startup stale-instance sweeping.
+
 ## 0.1.1.1 — 2026-10-05
 
 ### Other Changes
diff --git a/relay-pagination-hasql.cabal b/relay-pagination-hasql.cabal
--- a/relay-pagination-hasql.cabal
+++ b/relay-pagination-hasql.cabal
@@ -1,6 +1,6 @@
 cabal-version:   3.0
 name:            relay-pagination-hasql
-version:         0.1.1.1
+version:         0.1.1.2
 synopsis:
   Keyset-pagination engine producing Relay connections from hasql queries
 
@@ -52,7 +52,7 @@
     , bytestring                >=0.11     && <0.13
     , hasql                     >=1.10     && <1.11
     , hasql-dynamic-statements  >=0.5.1    && <0.6
-    , relay-pagination          ^>=0.1.1.1
+    , relay-pagination          ^>=0.1.1.2
     , text                      >=2.0      && <2.2
     , time                      >=1.12     && <1.15
     , uuid                      >=1.3      && <1.4
@@ -60,9 +60,10 @@
 test-suite relay-pagination-hasql-tests
   import:         lang
   type:           exitcode-stdio-1.0
-  hs-source-dirs: test
+  hs-source-dirs: test test-support
   main-is:        Main.hs
   other-modules:
+    Relay.Pagination.Test.Postgres
     Test.Codec
     Test.Connection
     Test.Fingerprint
@@ -72,10 +73,11 @@
   build-depends:
     , base
     , bytestring
-    , ephemeral-pg
+    , directory
+    , ephemeral-pg              >=0.3.1    && <0.4
     , hasql
     , hasql-dynamic-statements
-    , relay-pagination          ^>=0.1.1.1
+    , relay-pagination          ^>=0.1.1.2
     , relay-pagination-hasql
     , tasty
     , tasty-golden
@@ -83,4 +85,5 @@
     , tasty-quickcheck
     , text
     , time
+    , unix
     , uuid
diff --git a/test-support/Relay/Pagination/Test/Postgres.hs b/test-support/Relay/Pagination/Test/Postgres.hs
new file mode 100644
--- /dev/null
+++ b/test-support/Relay/Pagination/Test/Postgres.hs
@@ -0,0 +1,18 @@
+{-# LANGUAGE ImportQualifiedPost #-}
+
+-- | PostgreSQL configuration shared by Relay tests and the example service.
+-- A stable short effective-uid root lets subsequent runs sweep abandoned
+-- clusters across shell sessions. Default startup sweeping stays enabled.
+module Relay.Pagination.Test.Postgres (ephemeralPgConfig) where
+
+import Data.Monoid (Last (..))
+import EphemeralPg qualified as Pg
+import System.Directory (createDirectoryIfMissing)
+import System.Posix.User (getEffectiveUserID)
+
+ephemeralPgConfig :: IO Pg.Config
+ephemeralPgConfig = do
+  uid <- getEffectiveUserID
+  let root = "/tmp/ephpg-relay-" <> show uid
+  createDirectoryIfMissing True root
+  pure Pg.defaultConfig {Pg.temporaryRoot = Last (Just root)}
diff --git a/test/Test/Integration.hs b/test/Test/Integration.hs
--- a/test/Test/Integration.hs
+++ b/test/Test/Integration.hs
@@ -43,6 +43,7 @@
     timestamptzKey,
   )
 import Relay.Pagination.Hasql.KeyCodec (microsToUtcTime)
+import Relay.Pagination.Test.Postgres (ephemeralPgConfig)
 import Test.Tasty
 import Test.Tasty.HUnit
 
@@ -186,9 +187,10 @@
 
 acquire :: IO (Pg.Database, Connection.Connection)
 acquire = do
+  config <- ephemeralPgConfig
   db <-
     either (fail . Text.unpack . Pg.renderStartError) pure
-      =<< Pg.startCached Pg.defaultConfig Pg.defaultCacheConfig
+      =<< Pg.startCached config Pg.defaultCacheConfig
   conn <- either (fail . show) pure =<< Connection.acquire (Pg.connectionSettings db)
   run conn createSchema
   run conn (mapM_ insertRow seedRows)
@@ -229,7 +231,8 @@
 -- section for the expected transcript.
 demo :: IO ()
 demo = do
-  result <- Pg.with \db -> do
+  config <- ephemeralPgConfig
+  result <- Pg.withConfig config \db -> do
     conn <- either (fail . show) pure =<< Connection.acquire (Pg.connectionSettings db)
     run conn createSchema
     run conn (mapM_ insertRow seedRows)