diff --git a/package-lock.json b/package-lock.json
index 0df62ef0..06060336 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,8 +9,8 @@
       "version": "1.1.17",
       "license": "MIT",
       "dependencies": {
-        "@mathigon/core": "1.1.17",
-        "@mathigon/fermat": "1.1.16"
+        "@mathigon/core": "1.1.18",
+        "@mathigon/fermat": "1.1.17"
       },
       "devDependencies": {
         "@types/tape": "5.6.4",
@@ -557,19 +557,17 @@
       }
     },
     "node_modules/@mathigon/core": {
-      "version": "1.1.17",
-      "resolved": "https://registry.npmjs.org/@mathigon/core/-/core-1.1.17.tgz",
-      "integrity": "sha512-bW7z+u2oO0oa+1PLDszk3tOgdz0IPR+zqOZJ7f6tYba95INO0U2Bndg5J2QogQpG6Yie+/WbEyyO5TLS+vYHPw==",
-      "license": "MIT",
+      "version": "1.1.18",
+      "resolved": "https://registry.npmjs.org/@mathigon/core/-/core-1.1.18.tgz",
+      "integrity": "sha512-D1c/h0/qb5l0RQS6Ayz5yLGtPW3zGJ/f59MWLggN0viB1bhRzD/qJvEzQOmdfCjawQ4tMVJjTDDJqDLAX5fbRA==",
       "engines": {
         "node": ">=16"
       }
     },
     "node_modules/@mathigon/fermat": {
-      "version": "1.1.16",
-      "resolved": "https://registry.npmjs.org/@mathigon/fermat/-/fermat-1.1.16.tgz",
-      "integrity": "sha512-VS56gbejfOwJcFRAX9xWHR/JiNoUCX9FrtBxekQwIZs6uxpb3yUrv8HEFMhemVOVulos+/fuwM81OkmfwI3Jhg==",
-      "license": "MIT",
+      "version": "1.1.17",
+      "resolved": "https://registry.npmjs.org/@mathigon/fermat/-/fermat-1.1.17.tgz",
+      "integrity": "sha512-Iq3pYWmtl/aWowJ8jT1V9QaWhZUd9VdCA5l5zY26RiqGoRKyIzSct2oWix52fKJLSAdUnVUKO02IAT7J6IMJTw==",
       "dependencies": {
         "@mathigon/core": "1.1.17"
       },
@@ -577,6 +575,14 @@
         "node": ">=16"
       }
     },
+    "node_modules/@mathigon/fermat/node_modules/@mathigon/core": {
+      "version": "1.1.17",
+      "resolved": "https://registry.npmjs.org/@mathigon/core/-/core-1.1.17.tgz",
+      "integrity": "sha512-bW7z+u2oO0oa+1PLDszk3tOgdz0IPR+zqOZJ7f6tYba95INO0U2Bndg5J2QogQpG6Yie+/WbEyyO5TLS+vYHPw==",
+      "engines": {
+        "node": ">=16"
+      }
+    },
     "node_modules/@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -4080,16 +4086,23 @@
       }
     },
     "@mathigon/core": {
-      "version": "1.1.17",
-      "resolved": "https://registry.npmjs.org/@mathigon/core/-/core-1.1.17.tgz",
-      "integrity": "sha512-bW7z+u2oO0oa+1PLDszk3tOgdz0IPR+zqOZJ7f6tYba95INO0U2Bndg5J2QogQpG6Yie+/WbEyyO5TLS+vYHPw=="
+      "version": "1.1.18",
+      "resolved": "https://registry.npmjs.org/@mathigon/core/-/core-1.1.18.tgz",
+      "integrity": "sha512-D1c/h0/qb5l0RQS6Ayz5yLGtPW3zGJ/f59MWLggN0viB1bhRzD/qJvEzQOmdfCjawQ4tMVJjTDDJqDLAX5fbRA=="
     },
     "@mathigon/fermat": {
-      "version": "1.1.16",
-      "resolved": "https://registry.npmjs.org/@mathigon/fermat/-/fermat-1.1.16.tgz",
-      "integrity": "sha512-VS56gbejfOwJcFRAX9xWHR/JiNoUCX9FrtBxekQwIZs6uxpb3yUrv8HEFMhemVOVulos+/fuwM81OkmfwI3Jhg==",
+      "version": "1.1.17",
+      "resolved": "https://registry.npmjs.org/@mathigon/fermat/-/fermat-1.1.17.tgz",
+      "integrity": "sha512-Iq3pYWmtl/aWowJ8jT1V9QaWhZUd9VdCA5l5zY26RiqGoRKyIzSct2oWix52fKJLSAdUnVUKO02IAT7J6IMJTw==",
       "requires": {
         "@mathigon/core": "1.1.17"
+      },
+      "dependencies": {
+        "@mathigon/core": {
+          "version": "1.1.17",
+          "resolved": "https://registry.npmjs.org/@mathigon/core/-/core-1.1.17.tgz",
+          "integrity": "sha512-bW7z+u2oO0oa+1PLDszk3tOgdz0IPR+zqOZJ7f6tYba95INO0U2Bndg5J2QogQpG6Yie+/WbEyyO5TLS+vYHPw=="
+        }
       }
     },
     "@nodelib/fs.scandir": {
diff --git a/package.json b/package.json
index d3b545cd..f5a7bcec 100644
--- a/package.json
+++ b/package.json
@@ -31,8 +31,8 @@
     "lint": "eslint . --ext .ts"
   },
   "dependencies": {
-    "@mathigon/core": "1.1.17",
-    "@mathigon/fermat": "1.1.16"
+    "@mathigon/core": "1.1.18",
+    "@mathigon/fermat": "1.1.17"
   },
   "devDependencies": {
     "@types/tape": "5.6.4",