diff --git a/package-lock.json b/package-lock.json
index 5e071e1..f5a6185 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -63,6 +63,7 @@
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2",
         "longest": "1.0.1",
@@ -269,9 +270,9 @@
       "integrity": "sha1-naHpgOO9RPxck79as9ozeNheRms="
     },
     "debug": {
-      "version": "2.6.8",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
-      "integrity": "sha1-5zFTHKLt4n0YgiJCfaF4IdaP9Pw=",
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
       "requires": {
         "ms": "2.0.0"
       }
@@ -587,7 +588,8 @@
     "is-buffer": {
       "version": "1.1.5",
       "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.5.tgz",
-      "integrity": "sha1-Hzsm72E7IUuIy8ojzGwB2Hlh7sw="
+      "integrity": "sha1-Hzsm72E7IUuIy8ojzGwB2Hlh7sw=",
+      "optional": true
     },
     "isarray": {
       "version": "1.0.0",
@@ -603,6 +605,7 @@
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+      "optional": true,
       "requires": {
         "is-buffer": "1.1.5"
       }
@@ -626,7 +629,8 @@
     "longest": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
-      "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc="
+      "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
+      "optional": true
     },
     "media-typer": {
       "version": "0.3.0",
@@ -725,6 +729,16 @@
         "depd": "1.1.0",
         "on-finished": "2.3.0",
         "on-headers": "1.0.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.8",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
+          "integrity": "sha512-E22fsyWPt/lr4/UgQLt/pXqerGMDsanhbnmqIS3VAXuDi1v3IpiwXe2oncEIondHSBuPDWRoK/pMjlvi8FuOXQ==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        }
       }
     },
     "mpath": {
@@ -816,7 +830,8 @@
       }
     },
     "ot": {
-      "version": "git+https://github.com/Operational-Transformation/ot.js.git#8873b7e28e83f9adbf6c3a28ec639c9151a838ae"
+      "version": "git+https://github.com/Operational-Transformation/ot.js.git#8873b7e28e83f9adbf6c3a28ec639c9151a838ae",
+      "from": "git+https://github.com/Operational-Transformation/ot.js.git#8873b7e28e83f9adbf6c3a28ec639c9151a838ae"
     },
     "parseqs": {
       "version": "0.0.5",
@@ -951,7 +966,8 @@
     "repeat-string": {
       "version": "1.6.1",
       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
-      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc="
+      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
+      "optional": true
     },
     "require_optional": {
       "version": "1.0.1",
@@ -1059,6 +1075,16 @@
         "socket.io-adapter": "1.1.1",
         "socket.io-client": "2.0.4",
         "socket.io-parser": "3.1.2"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.8",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
+          "integrity": "sha512-E22fsyWPt/lr4/UgQLt/pXqerGMDsanhbnmqIS3VAXuDi1v3IpiwXe2oncEIondHSBuPDWRoK/pMjlvi8FuOXQ==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        }
       }
     },
     "socket.io-adapter": {
@@ -1084,6 +1110,16 @@
         "parseuri": "0.0.5",
         "socket.io-parser": "3.1.2",
         "to-array": "0.1.4"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.8",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
+          "integrity": "sha512-E22fsyWPt/lr4/UgQLt/pXqerGMDsanhbnmqIS3VAXuDi1v3IpiwXe2oncEIondHSBuPDWRoK/pMjlvi8FuOXQ==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        }
       }
     },
     "socket.io-parser": {
@@ -1097,6 +1133,14 @@
         "isarray": "2.0.1"
       },
       "dependencies": {
+        "debug": {
+          "version": "2.6.8",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
+          "integrity": "sha512-E22fsyWPt/lr4/UgQLt/pXqerGMDsanhbnmqIS3VAXuDi1v3IpiwXe2oncEIondHSBuPDWRoK/pMjlvi8FuOXQ==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
         "isarray": {
           "version": "2.0.1",
           "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
diff --git a/package.json b/package.json
index 8518cfc..1cea1a8 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   "dependencies": {
     "body-parser": "~1.17.1",
     "cookie-parser": "~1.4.3",
-    "debug": "~2.6.3",
+    "debug": "~2.6.9",
     "express": "~4.15.2",
     "express-session": "^1.15.1",
     "express-validator": "^3.2.0",