diff --git a/agent/pyproject.toml b/agent/pyproject.toml
index 44b3abe..400b606 100644
--- a/agent/pyproject.toml
+++ b/agent/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "gti-fiscal-agent"
-version = "1.1.4"
+version = "1.1.5"
 requires-python = ">=3.10"
 dependencies = ["httpx>=0.27,<1"]
 
diff --git a/agent/scripts/run_agent_service.py b/agent/scripts/run_agent_service.py
index ff0861b..48dee6d 100644
--- a/agent/scripts/run_agent_service.py
+++ b/agent/scripts/run_agent_service.py
@@ -103,7 +103,7 @@ class Config:
         # (A legacy AGENT_JOBS_ENABLED line in an old agent.env is deliberately ignored.)
         self.agent_jobs_enabled = True
         self.poll_interval_seconds = float(env.get("POLL_INTERVAL_SECONDS", "5"))
-        self.agent_version = env.get("AGENT_VERSION", "1.1.4")
+        self.agent_version = env.get("AGENT_VERSION", "1.1.5")
         self.schema_fingerprint = env.get("SCHEMA_FINGERPRINT", REFERENCE_SCHEMA_V1)
         self.state_db = env.get("AGENT_STATE_DB", str(AGENT_ROOT / "agent_state.sqlite"))
         # Pilot write authorization: both must be explicitly set by the installer for
@@ -240,7 +240,7 @@ def execute_job(job, config, executor, state, env):
             "coverage": coverage,
             "operational": operational,
             "fiscal_mode": getattr(config, "fiscal_mode", None),
-            "release_version": env.get("AGENT_VERSION") or "1.1.4",
+            "release_version": env.get("AGENT_VERSION") or "1.1.5",
             "products_total": len(products),
             "products_changed": len(to_process),
             "products_processed": summary["processed"],
@@ -398,7 +398,7 @@ def run(config, env, *, max_iterations=None, stopper=None):
 def enforce_startup_preflight(env):
     """Full read-only preflight at startup (Hub, auth, Firebird, capabilities, company context, guards). Fail closed."""
     from gti_fiscal_agent.preflight import run_preflight
-    report = run_preflight(env, agent_version=env.get("AGENT_VERSION") or "1.1.4")
+    report = run_preflight(env, agent_version=env.get("AGENT_VERSION") or "1.1.5")
     logger.info("startup preflight: %s", json.dumps({k: report[k] for k in ("PREFLIGHT", "blockers", "fiscal_mode", "effective_firebird_writes")}, ensure_ascii=False))
     print(json.dumps({"PREFLIGHT": report["PREFLIGHT"], "blockers": report["blockers"]}, ensure_ascii=False))
     if report["PREFLIGHT"] != "PASS":
diff --git a/agent/src/gti_fiscal_agent/preflight.py b/agent/src/gti_fiscal_agent/preflight.py
index 9fb64a4..59ba2bd 100644
--- a/agent/src/gti_fiscal_agent/preflight.py
+++ b/agent/src/gti_fiscal_agent/preflight.py
@@ -9,7 +9,7 @@ import os
 import sqlite3
 from pathlib import Path
 
-AGENT_VERSION_DEFAULT = "1.1.4"
+AGENT_VERSION_DEFAULT = "1.1.5"
 REQUIRED_ENV = ("GTI_HUB_URL", "AGENT_TOKEN", "FIREBIRD_DATABASE_PATH", "FB_USER", "FB_PASSWORD")
 REQUIRED_CAPABILITIES = ("supports_ncm", "supports_ipi", "supports_cest")
 FISCAL_MODES = ("DRY_RUN", "AUTO_APPLY")
diff --git a/central/app/version.py b/central/app/version.py
index 8ce0c21..fe68ca2 100644
--- a/central/app/version.py
+++ b/central/app/version.py
@@ -4,5 +4,5 @@ kept identical to this) and what an AgentRelease row's `version` column holds
 once published — never a second, independent version number. Fiscal semantics
 are versioned separately (ENGINE_VERSION/DECISION_VERSION in classification.py,
 DECISION_ENGINE_VERSION etc.) and are NOT changed by a release bump."""
-GTI_FISCAL_VERSION = "1.1.4"
+GTI_FISCAL_VERSION = "1.1.5"
 API_COMPAT_MAJOR_MINOR = "1.0"  # an Agent 1.0.x/1.1.x talks to any Hub 1.0.x
diff --git a/central/pyproject.toml b/central/pyproject.toml
index 09e09f1..0e75718 100644
--- a/central/pyproject.toml
+++ b/central/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "gti-fiscal-hub"
-version = "1.1.4"
+version = "1.1.5"
 requires-python = ">=3.10"
 dependencies = [
   "fastapi>=0.115,<1",
diff --git a/central/tests/test_health.py b/central/tests/test_health.py
index 3d1ef7a..6613697 100644
--- a/central/tests/test_health.py
+++ b/central/tests/test_health.py
@@ -17,7 +17,7 @@ def test_health_is_unavailable_when_database_is_down():
 
 def test_version_endpoint_reports_release_and_fiscal_versions():
     body = TestClient(create_app(database_probe=lambda: True)).get("/version").json()
-    assert body["version"] == "1.1.4" and body["api_compat"] == "1.0" and body["engine_version"] and body["decision_version"]
+    assert body["version"] == "1.1.5" and body["api_compat"] == "1.0" and body["engine_version"] and body["decision_version"]
 
 
 def test_production_refuses_the_dev_token(monkeypatch):
diff --git a/deploy/agent-windows/agent.env.template b/deploy/agent-windows/agent.env.template
index a4167e5..21271b4 100644
--- a/deploy/agent-windows/agent.env.template
+++ b/deploy/agent-windows/agent.env.template
@@ -19,4 +19,4 @@ FB_PASSWORD=
 FISCAL_MODE=DRY_RUN
 FIREBIRD_WRITES=0
 POLL_INTERVAL_SECONDS=5
-AGENT_VERSION=1.1.4
+AGENT_VERSION=1.1.5
diff --git a/deploy/agent-windows/gti-agent.ps1 b/deploy/agent-windows/gti-agent.ps1
index 6ba381b..e55ce19 100644
--- a/deploy/agent-windows/gti-agent.ps1
+++ b/deploy/agent-windows/gti-agent.ps1
@@ -164,7 +164,7 @@ switch ($Command) {
                 "GTI_HUB_URL=$hub", "AGENT_TOKEN=$token", "AGENT_ID=$agentId",
                 "COMPANY_CODE=$code", "COMPANY_CNPJ=$cnpj", "COMPANY_CRT_SOURCE=$crtSource",
                 "FIREBIRD_DATABASE_PATH=$db", "FB_USER=$fbUser", "FB_PASSWORD=$fbPass",
-                'FISCAL_MODE=DRY_RUN', 'FIREBIRD_WRITES=0', 'POLL_INTERVAL_SECONDS=5', 'AGENT_VERSION=1.1.4'
+                'FISCAL_MODE=DRY_RUN', 'FIREBIRD_WRITES=0', 'POLL_INTERVAL_SECONDS=5', 'AGENT_VERSION=1.1.5'
             )
             Set-Content -Path $EnvFile -Value $lines -Encoding UTF8
         }
diff --git a/deploy/agent-windows/pilot-construcao.env.example b/deploy/agent-windows/pilot-construcao.env.example
index fa80e1f..08a7775 100644
--- a/deploy/agent-windows/pilot-construcao.env.example
+++ b/deploy/agent-windows/pilot-construcao.env.example
@@ -19,4 +19,4 @@ FB_PASSWORD=
 FISCAL_MODE=DRY_RUN
 FIREBIRD_WRITES=0
 POLL_INTERVAL_SECONDS=5
-AGENT_VERSION=1.1.4
+AGENT_VERSION=1.1.5
diff --git a/deploy/agent-windows/profiles/mmmodas.env.example b/deploy/agent-windows/profiles/mmmodas.env.example
index 193fbb2..3a9f946 100644
--- a/deploy/agent-windows/profiles/mmmodas.env.example
+++ b/deploy/agent-windows/profiles/mmmodas.env.example
@@ -19,4 +19,4 @@ FB_PASSWORD=
 FISCAL_MODE=DRY_RUN
 FIREBIRD_WRITES=0
 POLL_INTERVAL_SECONDS=5
-AGENT_VERSION=1.1.4
+AGENT_VERSION=1.1.5
diff --git a/deploy/agent-windows/profiles/rincao.env.example b/deploy/agent-windows/profiles/rincao.env.example
index bc5e58d..ccc2502 100644
--- a/deploy/agent-windows/profiles/rincao.env.example
+++ b/deploy/agent-windows/profiles/rincao.env.example
@@ -19,4 +19,4 @@ FB_PASSWORD=
 FISCAL_MODE=DRY_RUN
 FIREBIRD_WRITES=0
 POLL_INTERVAL_SECONDS=5
-AGENT_VERSION=1.1.4
+AGENT_VERSION=1.1.5
diff --git a/deploy/agent-windows/profiles/uniao.env.example b/deploy/agent-windows/profiles/uniao.env.example
index 37365c8..689da6c 100644
--- a/deploy/agent-windows/profiles/uniao.env.example
+++ b/deploy/agent-windows/profiles/uniao.env.example
@@ -19,4 +19,4 @@ FB_PASSWORD=
 FISCAL_MODE=DRY_RUN
 FIREBIRD_WRITES=0
 POLL_INTERVAL_SECONDS=5
-AGENT_VERSION=1.1.4
+AGENT_VERSION=1.1.5
diff --git a/deploy/hub/.env.example b/deploy/hub/.env.example
index 7852a83..ecf8815 100644
--- a/deploy/hub/.env.example
+++ b/deploy/hub/.env.example
@@ -1,5 +1,5 @@
 # GTI Fiscal Hub — production environment (copy to .env, never commit .env)
-GTI_FISCAL_VERSION=1.1.4
+GTI_FISCAL_VERSION=1.1.5
 
 # REQUIRED. URL-safe secret (used inside a connection URL): openssl rand -hex 24
 POSTGRES_PASSWORD=
diff --git a/deploy/hub/docker-compose.prod.yml b/deploy/hub/docker-compose.prod.yml
index 671c9d0..2e3b74b 100644
--- a/deploy/hub/docker-compose.prod.yml
+++ b/deploy/hub/docker-compose.prod.yml
@@ -36,7 +36,7 @@ services:
     build:
       context: ../..
       dockerfile: central/Dockerfile
-    image: gti-fiscal-hub:${GTI_FISCAL_VERSION:-1.1.4}
+    image: gti-fiscal-hub:${GTI_FISCAL_VERSION:-1.1.5}
     restart: unless-stopped
     depends_on:
       postgres:
diff --git a/installer/install_common.py b/installer/install_common.py
index 1d69fd1..ad09286 100644
--- a/installer/install_common.py
+++ b/installer/install_common.py
@@ -213,6 +213,16 @@ def stop_service() -> None:
     _sc(["stop", SERVICE_NAME])
 
 
+def ensure_service_stopped(timeout: float = 45.0) -> None:
+    """Stop the service and make sure its host process is really gone (an upgrade must be able
+    to overwrite the executable): SCM stop, wait, then kill any leftover host process."""
+    stop_service()
+    if not wait_service_state("STOPPED", timeout=timeout):
+        subprocess.run(["taskkill", "/F", "/IM", "GTIFiscalAgentService.exe"], capture_output=True, text=True)
+        wait_service_state("STOPPED", timeout=15)
+    time.sleep(2)
+
+
 def remove_service() -> None:
     """Stop then delete the service; both best effort (idempotent)."""
     stop_service()
diff --git a/installer/setup_main.py b/installer/setup_main.py
index 1758609..1ed99f1 100644
--- a/installer/setup_main.py
+++ b/installer/setup_main.py
@@ -26,6 +26,7 @@ import os
 import shutil
 import sys
 import threading
+import time
 import tkinter as tk
 from pathlib import Path
 from tkinter import filedialog, messagebox, ttk
@@ -141,8 +142,7 @@ def upgrade_flow(*, install_dir_path: str | None = None, progress: Callable[[str
     version = setup_version()
     progress("Atualizando o Agent (identidade e credenciais preservadas)…")
     if common.service_installed():
-        common.stop_service()
-        common.wait_service_state("STOPPED", timeout=45)
+        common.ensure_service_stopped()
     extract_payload(install)
     common.upgrade_agent_env(install, version)
     common.install_service(install)
@@ -175,7 +175,14 @@ def extract_payload(install: Path) -> None:
         if not source.exists():
             raise RuntimeError(f"bundled payload missing: {source}")
         if source.is_dir():
-            shutil.copytree(source, dest, dirs_exist_ok=True)
+            for attempt in range(5):  # a just-stopped host can still hold files for a moment
+                try:
+                    shutil.copytree(source, dest, dirs_exist_ok=True)
+                    break
+                except PermissionError:
+                    if attempt == 4:
+                        raise
+                    time.sleep(3)
         else:
             dest.parent.mkdir(parents=True, exist_ok=True)
             shutil.copy2(source, dest)
diff --git a/release/RELEASE_MANIFEST.json b/release/RELEASE_MANIFEST.json
index 6e80fda..1ddf123 100644
--- a/release/RELEASE_MANIFEST.json
+++ b/release/RELEASE_MANIFEST.json
@@ -1,14 +1,14 @@
 {
  "artifact": "RELEASE_MANIFEST",
- "GTI_FISCAL_VERSION": "1.1.4",
- "generated_at": "2026-09-24T12:33:17+00:00",
+ "GTI_FISCAL_VERSION": "1.1.5",
+ "generated_at": "2026-09-24T12:43:54+00:00",
  "hub": {
-  "version": "1.1.4",
+  "version": "1.1.5",
   "api_compat": "1.0",
   "engine_version": "0.3.0",
   "decision_version": "mission-04c-ipi-ex-split"
  },
- "agent_version": "1.1.4",
+ "agent_version": "1.1.5",
  "fiscal_engine": {
   "ENGINE_VERSION": "0.3.0",
   "DECISION_VERSION": "mission-04c-ipi-ex-split",
diff --git a/release/VERSION b/release/VERSION
index 65087b4..e25d8d9 100644
--- a/release/VERSION
+++ b/release/VERSION
@@ -1 +1 @@
-1.1.4
+1.1.5
diff --git a/tests/test_release_candidate.py b/tests/test_release_candidate.py
index 51155f1..221e29b 100644
--- a/tests/test_release_candidate.py
+++ b/tests/test_release_candidate.py
@@ -14,11 +14,11 @@ sys.path.insert(0, str(ROOT))
 def test_versions_are_coherent_across_hub_agent_and_packages():
     from central.app.version import GTI_FISCAL_VERSION
     v = (ROOT / "release" / "VERSION").read_text(encoding="utf-8").strip()
-    assert v == GTI_FISCAL_VERSION == "1.1.4"
+    assert v == GTI_FISCAL_VERSION == "1.1.5"
     pep = v.replace("-rc", "rc")
     for pp in ("central/pyproject.toml", "agent/pyproject.toml"):
         assert f'version = "{pep}"' in (ROOT / pp).read_text(encoding="utf-8")
-    assert '"AGENT_VERSION", "1.1.4"' in (ROOT / "agent" / "scripts" / "run_agent_service.py").read_text(encoding="utf-8")
+    assert '"AGENT_VERSION", "1.1.5"' in (ROOT / "agent" / "scripts" / "run_agent_service.py").read_text(encoding="utf-8")
     manifest = ROOT / "release" / "RELEASE_MANIFEST.json"
     if manifest.exists():
         m = json.loads(manifest.read_text(encoding="utf-8"))
diff --git a/tests/test_zero_touch_installer.py b/tests/test_zero_touch_installer.py
index 9e74a82..65feaf9 100644
--- a/tests/test_zero_touch_installer.py
+++ b/tests/test_zero_touch_installer.py
@@ -36,7 +36,7 @@ def world(tmp_path, monkeypatch):
     monkeypatch.setattr(common, "service_running", lambda: False)
     monkeypatch.setattr(common, "service_installed", lambda: True)
     monkeypatch.setattr(common, "start_service", lambda: calls.append(("start",)))
-    monkeypatch.setattr(common, "stop_service", lambda: calls.append(("stop",)))
+    monkeypatch.setattr(common, "ensure_service_stopped", lambda timeout=45.0: calls.append(("stop",)))
     monkeypatch.setattr(common, "wait_service_state", lambda wanted, timeout=45: True)
     monkeypatch.setattr(common, "wait_for_heartbeat", lambda token, hub, timeout=120: calls.append(("heartbeat_wait",)) or True)
     monkeypatch.setattr(common, "audit_event", lambda *a, **k: None)