diff --git a/lib/Database.js b/lib/Database.js
index 2c86319..8f5d7bc 100644
--- a/lib/Database.js
+++ b/lib/Database.js
@@ -138,6 +138,7 @@ export default class Database extends Events {
 
         this._db = open({
             path: path.join(this.#path, this.#name),
+            sharedStructuresKey: Symbol.for('structures')
         });
         this.#closed = false;
 
diff --git a/lib/Thread.js b/lib/Thread.js
index f2b70dd..b0d4fff 100644
--- a/lib/Thread.js
+++ b/lib/Thread.js
@@ -103,6 +103,7 @@ function startDb(dbpath, name, cache) {
     if(!db) {
         db = open({
             path: path.join(dbpath, name),
+            sharedStructuresKey: Symbol.for('structures'),
             cache: cache
         });
         virtualDB = new VirtualDatabase(db);
diff --git a/package-lock.json b/package-lock.json
index a466957..1f043a5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "acorn": "^8.7.0",
         "axios": "^0.25.0",
         "fastify": "^3.27.0",
-        "lmdb": "^2.1.7",
+        "lmdb": "^2.2.0-beta1",
         "minimist": "^1.2.5",
         "nanoid": "^3.2.0",
         "threads": "^1.7.0",
@@ -3215,16 +3215,16 @@
       }
     },
     "node_modules/lmdb": {
-      "version": "2.1.7",
-      "resolved": "https://registry.npmjs.org/lmdb/-/lmdb-2.1.7.tgz",
-      "integrity": "sha512-i6EFEBBlQ130J4BfJUbYgZFKQDz83xhpM47vzs0BMpXiJ7D4NjecO1Y3X54D341dwkLmTphlIyro5nTkKFXoMQ==",
+      "version": "2.2.0-beta1",
+      "resolved": "https://registry.npmjs.org/lmdb/-/lmdb-2.2.0-beta1.tgz",
+      "integrity": "sha512-vfTP63aD8lT3/+s4iq5w87BFdfd6toViNTygtEw83GrLITxD0e2U9cR71eTrLZ8hPdP7RnhR1ZEZQvkYA6tQsw==",
       "hasInstallScript": true,
       "dependencies": {
-        "msgpackr": "^1.5.2",
+        "msgpackr": "^1.5.3",
         "nan": "^2.14.2",
         "node-gyp-build": "^4.2.3",
-        "ordered-binary": "^1.2.3",
-        "weak-lru-cache": "^1.2.1"
+        "ordered-binary": "^1.2.4",
+        "weak-lru-cache": "^1.2.2"
       }
     },
     "node_modules/locate-path": {
@@ -3645,9 +3645,9 @@
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
     "node_modules/msgpackr": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npmjs.org/msgpackr/-/msgpackr-1.5.2.tgz",
-      "integrity": "sha512-OCguCkbG34x1ddO4vAzEm/4J1GTo512k9SoxV8K+EGfI/onFdpemRf0HpsVRFpxadXr4JBFgHsQUitgTlw7ZYQ==",
+      "version": "1.5.3",
+      "resolved": "https://registry.npmjs.org/msgpackr/-/msgpackr-1.5.3.tgz",
+      "integrity": "sha512-dk5SjZyq2ntujAR49SZFjc44Oa4kfzP+VePyqrRCqYSY24qJfnJBvduxp4oJrHONLaE29IjuX1r9a9DsReDNUQ==",
       "optionalDependencies": {
         "msgpackr-extract": "^1.0.14"
       }
@@ -3954,9 +3954,9 @@
       }
     },
     "node_modules/ordered-binary": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/ordered-binary/-/ordered-binary-1.2.3.tgz",
-      "integrity": "sha512-fEwMk8TNUtzQDjXKYS2ANW3fNZ/gMReCPOAsLHaqw+UDnq/8ddXAcX4lGRpTK7kAghAjkmJs1EXXbcrDbg+ruw=="
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/ordered-binary/-/ordered-binary-1.2.4.tgz",
+      "integrity": "sha512-A/csN0d3n+igxBPfUrjbV5GC69LWj2pjZzAAeeHXLukQ4+fytfP4T1Lg0ju7MSPSwq7KtHkGaiwO8URZN5IpLg=="
     },
     "node_modules/org-regex": {
       "version": "1.0.0",
@@ -5728,9 +5728,9 @@
       }
     },
     "node_modules/weak-lru-cache": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/weak-lru-cache/-/weak-lru-cache-1.2.1.tgz",
-      "integrity": "sha512-O5ag1F0Xk6ui+Fg5LlosTcVAyHs6DeyiDDbOapNtFCx/KjZ82B3U9stM9hvzbVclKWn9ABPjaINX/nQkGkJkKg=="
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/weak-lru-cache/-/weak-lru-cache-1.2.2.tgz",
+      "integrity": "sha512-DEAoo25RfSYMuTGc9vPJzZcZullwIqRDSI9LOy+fkCJPi6hykCnfKaXTuPBDuXAUcqHXyOgFtHNp/kB2FjYHbw=="
     },
     "node_modules/webidl-conversions": {
       "version": "3.0.1",
@@ -8407,15 +8407,15 @@
       }
     },
     "lmdb": {
-      "version": "2.1.7",
-      "resolved": "https://registry.npmjs.org/lmdb/-/lmdb-2.1.7.tgz",
-      "integrity": "sha512-i6EFEBBlQ130J4BfJUbYgZFKQDz83xhpM47vzs0BMpXiJ7D4NjecO1Y3X54D341dwkLmTphlIyro5nTkKFXoMQ==",
+      "version": "2.2.0-beta1",
+      "resolved": "https://registry.npmjs.org/lmdb/-/lmdb-2.2.0-beta1.tgz",
+      "integrity": "sha512-vfTP63aD8lT3/+s4iq5w87BFdfd6toViNTygtEw83GrLITxD0e2U9cR71eTrLZ8hPdP7RnhR1ZEZQvkYA6tQsw==",
       "requires": {
-        "msgpackr": "^1.5.2",
+        "msgpackr": "^1.5.3",
         "nan": "^2.14.2",
         "node-gyp-build": "^4.2.3",
-        "ordered-binary": "^1.2.3",
-        "weak-lru-cache": "^1.2.1"
+        "ordered-binary": "^1.2.4",
+        "weak-lru-cache": "^1.2.2"
       }
     },
     "locate-path": {
@@ -8731,9 +8731,9 @@
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
     "msgpackr": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npmjs.org/msgpackr/-/msgpackr-1.5.2.tgz",
-      "integrity": "sha512-OCguCkbG34x1ddO4vAzEm/4J1GTo512k9SoxV8K+EGfI/onFdpemRf0HpsVRFpxadXr4JBFgHsQUitgTlw7ZYQ==",
+      "version": "1.5.3",
+      "resolved": "https://registry.npmjs.org/msgpackr/-/msgpackr-1.5.3.tgz",
+      "integrity": "sha512-dk5SjZyq2ntujAR49SZFjc44Oa4kfzP+VePyqrRCqYSY24qJfnJBvduxp4oJrHONLaE29IjuX1r9a9DsReDNUQ==",
       "requires": {
         "msgpackr-extract": "^1.0.14"
       }
@@ -8960,9 +8960,9 @@
       }
     },
     "ordered-binary": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/ordered-binary/-/ordered-binary-1.2.3.tgz",
-      "integrity": "sha512-fEwMk8TNUtzQDjXKYS2ANW3fNZ/gMReCPOAsLHaqw+UDnq/8ddXAcX4lGRpTK7kAghAjkmJs1EXXbcrDbg+ruw=="
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/ordered-binary/-/ordered-binary-1.2.4.tgz",
+      "integrity": "sha512-A/csN0d3n+igxBPfUrjbV5GC69LWj2pjZzAAeeHXLukQ4+fytfP4T1Lg0ju7MSPSwq7KtHkGaiwO8URZN5IpLg=="
     },
     "org-regex": {
       "version": "1.0.0",
@@ -10276,9 +10276,9 @@
       "integrity": "sha512-LuCAHZN75H9tdrAiLFf030oW7nJV5xwNMuk1ymOZwopmuK3d2H4L1Kv4+GFHgarKiLfXXLFU+7LDABHnwOkWng=="
     },
     "weak-lru-cache": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/weak-lru-cache/-/weak-lru-cache-1.2.1.tgz",
-      "integrity": "sha512-O5ag1F0Xk6ui+Fg5LlosTcVAyHs6DeyiDDbOapNtFCx/KjZ82B3U9stM9hvzbVclKWn9ABPjaINX/nQkGkJkKg=="
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/weak-lru-cache/-/weak-lru-cache-1.2.2.tgz",
+      "integrity": "sha512-DEAoo25RfSYMuTGc9vPJzZcZullwIqRDSI9LOy+fkCJPi6hykCnfKaXTuPBDuXAUcqHXyOgFtHNp/kB2FjYHbw=="
     },
     "webidl-conversions": {
       "version": "3.0.1",
diff --git a/package.json b/package.json
index 561b723..afec02e 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "acorn": "^8.7.0",
     "axios": "^0.25.0",
     "fastify": "^3.27.0",
-    "lmdb": "^2.1.7",
+    "lmdb": "^2.2.0-beta1",
     "minimist": "^1.2.5",
     "nanoid": "^3.2.0",
     "threads": "^1.7.0",