diff --git a/arch/lmcp/PKGBUILD b/arch/lmcp/PKGBUILD
index 3d364ce01..3ff210050 100644
--- a/arch/lmcp/PKGBUILD
+++ b/arch/lmcp/PKGBUILD
@@ -3,7 +3,7 @@
 # Source of truth: git.reauktion.de/marfrit/lmcp
 
 pkgname=lmcp
-pkgver=1.1.0
+pkgver=1.1.1
 pkgrel=1
 pkgdesc="Lightweight MCP (Model Context Protocol) server in pure Lua"
 arch=('any')
@@ -14,7 +14,7 @@ depends=('lua' 'lua-socket')
 # pre-release pkgvers (e.g. 1.2.0_rc1 → v1.2.0-rc1).
 _tag="v${pkgver//_/-}"
 source=("${pkgname}-${pkgver}.tar.gz::https://git.reauktion.de/marfrit/lmcp/archive/${_tag}.tar.gz")
-sha256sums=('d758a9504389528cb8940ea81bc8cf47afad8c01166aef3484ac4f5752445532')
+sha256sums=('80c2e815aa61a2d3baab051c51cd247bdefa9dd03d72c4867b99c49b6eae9cb9')
 
 package() {
     cd "${pkgname}"
diff --git a/debian/lmcp/build-deb.sh b/debian/lmcp/build-deb.sh
index 12c189a17..3d30a8383 100755
--- a/debian/lmcp/build-deb.sh
+++ b/debian/lmcp/build-deb.sh
@@ -7,10 +7,10 @@
 # package (Architecture: all, depends on lua + lua-socket).
 set -euo pipefail
 
-PKGVER=1.1.0
-UPSTREAM_TAG=v1.1.0
+PKGVER=1.1.1
+UPSTREAM_TAG=v1.1.1
 PKGREL=1
-LMCP_TARBALL_SHA256=d758a9504389528cb8940ea81bc8cf47afad8c01166aef3484ac4f5752445532
+LMCP_TARBALL_SHA256=80c2e815aa61a2d3baab051c51cd247bdefa9dd03d72c4867b99c49b6eae9cb9
 HERE=$(dirname "$(readlink -f "$0")")
 
 # Reproducible build: pin all file mtimes + ar member timestamps to a fixed
diff --git a/debian/lmcp/debian/changelog b/debian/lmcp/debian/changelog
index 2b0859f2d..b57bd522e 100644
--- a/debian/lmcp/debian/changelog
+++ b/debian/lmcp/debian/changelog
@@ -1,3 +1,20 @@
+lmcp (1.1.1-1) bookworm trixie; urgency=medium
+
+  * Bug fix: omit empty inputSchema.properties at tool registration.
+    The json.lua empty-table-as-array gotcha (same one that bit
+    `ping` in v1.0.0-rc1) was re-surfacing on tool inputSchemas
+    declared with `properties = {}` — spec-strict MCP clients (Zod)
+    rejected the tools/list with "expected: record, received: array".
+    lmcp:tool() now normalises empty properties tables by dropping
+    the key entirely (JSON Schema permits omitting `properties` on
+    `type:object`, meaning "any object — no constraints").
+    Discovered live on a hertz-tools deployment where two custom
+    no-arg tools (lxc_list, network_status) tripped the Zod check
+    and caused Claude Code to mark the entire MCP endpoint as
+    disconnected.
+
+ -- Markus Fritsche <mfritsche@reauktion.de>  Mon, 18 May 2026 00:55:00 +0000
+
 lmcp (1.1.0-1) bookworm trixie; urgency=medium
 
   * Concurrent handler dispatch (closes #20): tool handlers run in