diff --git a/package-lock.json b/package-lock.json
index 6ef24d23..465ef482 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
         "@axe-core/playwright": "^4.10.0",
         "@playwright/test": "^1.64.0",
         "force-graph": "1.51.4",
-        "impeccable": "4.1.0"
+        "impeccable": "4.5.2"
       }
     },
     "node_modules/@axe-core/playwright": {
@@ -28,9 +28,9 @@
       }
     },
     "node_modules/@impeccable/cli-darwin-arm64": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@impeccable/cli-darwin-arm64/-/cli-darwin-arm64-0.1.5.tgz",
-      "integrity": "sha512-RvSrbsvzHsyfVaL693mMiWWLauZXas00F5VrNoaqOUvOm478HJUIUnl77H393F9k9LWZNiNFLwIinRnGJ92naA==",
+      "version": "0.1.14",
+      "resolved": "https://registry.npmjs.org/@impeccable/cli-darwin-arm64/-/cli-darwin-arm64-0.1.14.tgz",
+      "integrity": "sha512-GXT7Av5yaBcmj88xVtkABV9ftwkG8oWszAcIbb+s2C0mQiniskdZrTcqElAZ29iT3FcLMfQtkWlhwd9V41Qvcg==",
       "cpu": [
         "arm64"
       ],
@@ -45,9 +45,9 @@
       }
     },
     "node_modules/@impeccable/cli-darwin-x64": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@impeccable/cli-darwin-x64/-/cli-darwin-x64-0.1.5.tgz",
-      "integrity": "sha512-wYfhNhVtgosKIjxxWdJ3X/KydASdDIAAdmng8shKUgfiCkY9Tld0psuhVJOdkKoJaRajagp7a2f/tCNN1xdBZA==",
+      "version": "0.1.14",
+      "resolved": "https://registry.npmjs.org/@impeccable/cli-darwin-x64/-/cli-darwin-x64-0.1.14.tgz",
+      "integrity": "sha512-9YKJ6m331oF22EmJGvvatFezFj8Jec4OmL9QPg1emg6D6RpQ5hF2E0xou3tVRjDZoQ3tR9qazDBkyzJoR+wPbw==",
       "cpu": [
         "x64"
       ],
@@ -62,9 +62,9 @@
       }
     },
     "node_modules/@impeccable/cli-linux-arm64": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@impeccable/cli-linux-arm64/-/cli-linux-arm64-0.1.5.tgz",
-      "integrity": "sha512-gjWJbOa7/wAECkIOac/x6mq43lDGaGwH87/ErsnrFwk/s5hgtlBF0sPePeB30e/lu1VzGMJcXVUEA8EULv4cCg==",
+      "version": "0.1.14",
+      "resolved": "https://registry.npmjs.org/@impeccable/cli-linux-arm64/-/cli-linux-arm64-0.1.14.tgz",
+      "integrity": "sha512-vjd6MelytaV15RK5hUWZ0aZFqiuBmqNO6silgb5g9G3ivplvQLL2pBvjXOayUchH9//1xRu9LxpFiS5ApZboZA==",
       "cpu": [
         "arm64"
       ],
@@ -79,9 +79,9 @@
       }
     },
     "node_modules/@impeccable/cli-linux-x64": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@impeccable/cli-linux-x64/-/cli-linux-x64-0.1.5.tgz",
-      "integrity": "sha512-JZU7kd7s4DOz9w2gwbbpI1u3YLhrcAUNZg/awjZcQFHJwpizv/MhPVUjHKYuChrPn+Oxlpw7KU8adKY1YrSq8g==",
+      "version": "0.1.14",
+      "resolved": "https://registry.npmjs.org/@impeccable/cli-linux-x64/-/cli-linux-x64-0.1.14.tgz",
+      "integrity": "sha512-f23x5t+pYPDkbt17oMAAcjmTSxexFfNYLZZ4ik/UeGLq1jiPCP6F17IWzBxOzj0C1lAHzOzSlrc7V8+57jMAtA==",
       "cpu": [
         "x64"
       ],
@@ -96,9 +96,9 @@
       }
     },
     "node_modules/@impeccable/cli-windows-x64": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@impeccable/cli-windows-x64/-/cli-windows-x64-0.1.5.tgz",
-      "integrity": "sha512-kVZFjQIjb84mF2klxTspxE1OilalO/OmYDQnLkCJeDJCQLr6+L6HvbghJ1TChq87uyMu4GQNDPr9VV+h+Z+tCQ==",
+      "version": "0.1.14",
+      "resolved": "https://registry.npmjs.org/@impeccable/cli-windows-x64/-/cli-windows-x64-0.1.14.tgz",
+      "integrity": "sha512-dTM/MSNNf+lBL9ILxuT2fICAD6mfeSdKtCg7ubIDvK5Sapr3n3snkJQkBN8PUjwzyCZAQPZPcV7deXatStYTCA==",
       "cpu": [
         "x64"
       ],
@@ -457,9 +457,9 @@
       }
     },
     "node_modules/impeccable": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/impeccable/-/impeccable-4.1.0.tgz",
-      "integrity": "sha512-hnfdoUK/Xg3qPtL0/5xzh92qKOtmREOZloCmFgnC1nYh3M81ihwCQEL2QWKntYl8qg1OG+jQ7wubR634PgTDIw==",
+      "version": "4.5.2",
+      "resolved": "https://registry.npmjs.org/impeccable/-/impeccable-4.5.2.tgz",
+      "integrity": "sha512-eTePiNIf0OgAXl2XHUcq+Dkd6DmCawj3UQdYKdNvoP4pdk0/0NBx1FqdG+7rDZUnrSNU3E9TodGAJWIST1X70A==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
@@ -469,11 +469,11 @@
         "node": ">=22.18.0"
       },
       "optionalDependencies": {
-        "@impeccable/cli-darwin-arm64": "0.1.5",
-        "@impeccable/cli-darwin-x64": "0.1.5",
-        "@impeccable/cli-linux-arm64": "0.1.5",
-        "@impeccable/cli-linux-x64": "0.1.5",
-        "@impeccable/cli-windows-x64": "0.1.5"
+        "@impeccable/cli-darwin-arm64": "0.1.14",
+        "@impeccable/cli-darwin-x64": "0.1.14",
+        "@impeccable/cli-linux-arm64": "0.1.14",
+        "@impeccable/cli-linux-x64": "0.1.14",
+        "@impeccable/cli-windows-x64": "0.1.14"
       }
     },
     "node_modules/index-array-by": {
diff --git a/package.json b/package.json
index c1009cec..87d23f1a 100644
--- a/package.json
+++ b/package.json
@@ -1 +1 @@
-{"name":"engraphis-tests","version":"1.0.0","private":true,"description":"Browser accessibility, e2e, vendored bundle provenance, and design-quality dependencies for Engraphis","scripts":{"test:e2e":"playwright test"},"devDependencies":{"@playwright/test":"^1.64.0","@axe-core/playwright":"^4.10.0","force-graph":"1.51.4","impeccable":"4.1.0"}}
\ No newline at end of file
+{"name":"engraphis-tests","version":"1.0.0","private":true,"description":"Browser accessibility, e2e, vendored bundle provenance, and design-quality dependencies for Engraphis","scripts":{"test:e2e":"playwright test"},"devDependencies":{"@playwright/test":"^1.64.0","@axe-core/playwright":"^4.10.0","force-graph":"1.51.4","impeccable":"4.5.2"}}
\ No newline at end of file
diff --git a/tests/test_encrypted_store.py b/tests/test_encrypted_store.py
index e192907a..4e8145b7 100644
--- a/tests/test_encrypted_store.py
+++ b/tests/test_encrypted_store.py
@@ -334,4 +334,3 @@ def test_create_memory_engine_honors_db_key_from_env(monkeypatch, tmp_path):
         eng.close()
     with pytest.raises(sqlite3.DatabaseError):
         sqlite3.connect(db).execute("SELECT * FROM memories").fetchone()
-
diff --git a/tests/test_hosted_ledger.py b/tests/test_hosted_ledger.py
index a28df414..2fe4047f 100644
--- a/tests/test_hosted_ledger.py
+++ b/tests/test_hosted_ledger.py
@@ -314,9 +314,10 @@ def swap_on_open(raw_path, flags, mode=0o777):
             swapped = True
         return original_open(raw_path, flags, mode)
 
-    monkeypatch.setattr(private_state_module.os, "open", swap_on_open)
-    with pytest.raises(HostedLedgerError, match="unsafe"):
-        PrivateHostedLedger(path, _binding(), repo_root=repo)
+    with monkeypatch.context() as patch:
+        patch.setattr(private_state_module.os, "open", swap_on_open)
+        with pytest.raises(HostedLedgerError, match="unsafe"):
+            PrivateHostedLedger(path, _binding(), repo_root=repo)
     assert swapped is True
 
 
@@ -347,6 +348,7 @@ def reparse_lstat(raw_path):
             return ReparseStat(result)
         return result
 
-    monkeypatch.setattr(private_state_module.os, "lstat", reparse_lstat)
-    with pytest.raises(HostedLedgerError, match="unsafe"):
-        PrivateHostedLedger(path, _binding(), repo_root=repo)
+    with monkeypatch.context() as patch:
+        patch.setattr(private_state_module.os, "lstat", reparse_lstat)
+        with pytest.raises(HostedLedgerError, match="unsafe"):
+            PrivateHostedLedger(path, _binding(), repo_root=repo)