diff --git a/packages/harness-opencode/package.json b/packages/harness-opencode/package.json
index 38b492d..14d6053 100644
--- a/packages/harness-opencode/package.json
+++ b/packages/harness-opencode/package.json
@@ -9,7 +9,7 @@
     "lint": "tsc --noEmit"
   },
   "devDependencies": {
-    "@opencode-ai/plugin": "1.18.3",
+    "@opencode-ai/plugin": "1.18.5",
     "typescript": "7.0.2"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 445c89b..1af2514 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -23,8 +23,8 @@ importers:
   packages/harness-opencode:
     devDependencies:
       '@opencode-ai/plugin':
-        specifier: 1.18.3
-        version: 1.18.3
+        specifier: 1.18.5
+        version: 1.18.5
       typescript:
         specifier: 7.0.2
         version: 7.0.2
@@ -335,12 +335,12 @@ packages:
     cpu: [x64]
     os: [win32]
 
-  '@opencode-ai/plugin@1.18.3':
-    resolution: {integrity: sha512-hAm/hZkSCsMSNHVy9DKmFtZAve/qYoIWpduNPcvXnnKK7NMlJEOQitA6CQC67Ym5DFKypDW1TC9YO6S1WdGtpg==}
+  '@opencode-ai/plugin@1.18.5':
+    resolution: {integrity: sha512-o1loQw5lh3zK7dgTN25Zh4tK+bW7BdszyDwdSumj0ahaR1lXWjYjVbAZuOQxeEQfkr266cqNi2x8UrrlkI0n7A==}
     peerDependencies:
-      '@opentui/core': '>=0.4.3'
-      '@opentui/keymap': '>=0.4.3'
-      '@opentui/solid': '>=0.4.3'
+      '@opentui/core': '>=0.4.5'
+      '@opentui/keymap': '>=0.4.5'
+      '@opentui/solid': '>=0.4.5'
     peerDependenciesMeta:
       '@opentui/core':
         optional: true
@@ -349,8 +349,8 @@ packages:
       '@opentui/solid':
         optional: true
 
-  '@opencode-ai/sdk@1.18.3':
-    resolution: {integrity: sha512-Mevo4e6kQwbvto9E+42KSIVMhp+JBu+SwQhC5AomAvrV6Xkio3U249T+xDILDCXhl5Z/Hi/DlAuVLzpGnuh0gg==}
+  '@opencode-ai/sdk@1.18.5':
+    resolution: {integrity: sha512-7KgMvP5/1oxbhHj6kYBtPSTEdFKYpUeEYOzBTKdzSaRpapUpFFdn6Hkus3rr0rljO0kukWZIgRd3DrVBwTULGA==}
 
   '@opentelemetry/api@1.9.0':
     resolution: {integrity: sha512-3giAOQvZiH5F9bMlMiv8+GSPMeqg0dbaeo58/0SlA9sxSqZhnUtxzX9/2FzyhS9sWQf5S0GJE0AKBrFqjpeYcg==}
@@ -1306,14 +1306,14 @@ snapshots:
   '@msgpackr-extract/msgpackr-extract-win32-x64@3.0.4':
     optional: true
 
-  '@opencode-ai/plugin@1.18.3':
+  '@opencode-ai/plugin@1.18.5':
     dependencies:
       '@ai-sdk/provider': 3.0.8
-      '@opencode-ai/sdk': 1.18.3
+      '@opencode-ai/sdk': 1.18.5
       effect: 4.0.0-beta.83
       zod: 4.1.8
 
-  '@opencode-ai/sdk@1.18.3':
+  '@opencode-ai/sdk@1.18.5':
     dependencies:
       cross-spawn: 7.0.6