diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@
 
 ## [Unreleased]
 
+## 0.19.0.1 — 2026-10-05
+
+### Other Changes
+
+- Admit effectful 2.7 alongside 2.6: `effectful <2.8` and
+  `effectful-core >=2.6 && <2.7 || >=2.7.1.1 && <2.8`. Exclude the
+  effectful-core 2.7.0.0–2.7.1.0 performance regression. Bounds only; no source changed.
+
 ## 0.19.0.0 — 2026-09-25
 
 ### Breaking Changes
diff --git a/keiro-pgmq.cabal b/keiro-pgmq.cabal
--- a/keiro-pgmq.cabal
+++ b/keiro-pgmq.cabal
@@ -1,6 +1,6 @@
 cabal-version: 3.0
 name: keiro-pgmq
-version: 0.19.0.0
+version: 0.19.0.1
 synopsis: PostgreSQL job-queue (PGMQ) integration for Keiro
 description:
   A typed background-job queue for Keiro applications on top of PGMQ (the
@@ -61,11 +61,11 @@
   build-depends:
     aeson >=2.2 && <2.3,
     base >=4.21 && <5,
-    effectful-core >=2.6 && <2.7,
+    effectful-core >=2.6 && <2.7 || >=2.7.1.1 && <2.8,
     hasql >=1.10 && <1.11,
     hasql-pool >=1.2 && <1.5,
     hs-opentelemetry-api >=1.0 && <1.1,
-    keiro-core ^>=0.19.0.0,
+    keiro-core ^>=0.19.0.1,
     pgmq-config >=0.6 && <0.7,
     pgmq-core >=0.6 && <0.7,
     pgmq-effectful >=0.6 && <0.7,
@@ -89,7 +89,7 @@
   build-depends:
     aeson >=2.2 && <2.3,
     base >=4.21 && <5,
-    effectful-core >=2.6 && <2.7,
+    effectful-core >=2.6 && <2.7 || >=2.7.1.1 && <2.8,
     hasql >=1.10 && <1.11,
     hasql-pool >=1.2 && <1.5,
     hs-opentelemetry-api >=1.0 && <1.1,
@@ -97,9 +97,9 @@
     hs-opentelemetry-propagator-w3c >=1.0 && <1.1,
     hs-opentelemetry-sdk >=1.0 && <1.1,
     hspec >=2.11,
-    keiro-core ^>=0.19.0.0,
+    keiro-core ^>=0.19.0.1,
     keiro-pgmq,
-    keiro-test-support ^>=0.19.0.0,
+    keiro-test-support ^>=0.19.0.1,
     pgmq-config >=0.6 && <0.7,
     pgmq-core >=0.6 && <0.7,
     pgmq-effectful >=0.6 && <0.7,