diff --git a/README.md b/README.md
index e32a57e..ad1138a 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ You can see an up-to-date copy of the production branch running on https://minet
 3. Add/remove servers by editing the ```servers.json``` file
 4. Run ```npm install```
 5. Run ```npm run build``` (this bundles `assets/` into `dist/`)
-6. Run ```node app.js``` to boot the system (may need sudo!)
+6. Run ```node main.js``` to boot the system (may need sudo!)
 
 (There's also ```install.sh``` and ```start.sh```, but they may not work for your OS.)
 
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index bd401ad..347473b 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,3 +1,6 @@
+**5.1.2** *(Apr 22 2020)*
+- Fixes the historical graph overflowing the maximum graphDuration value.
+
 **5.1.1** *(Apr 21 2020)*
 - Fixes records being overwritten after boot. This bug did not corrupt saves and is only a visual error.
 
diff --git a/lib/servers.js b/lib/servers.js
index 0ad6dd6..919be31 100644
--- a/lib/servers.js
+++ b/lib/servers.js
@@ -171,13 +171,8 @@ class ServerRegistration {
     this._lastGraphDataPush = timestamp
 
     // Trim old graphPoints according to graphDuration
-    for (let i = 1; i < this.graphData.length; i++) {
-      // Find a break point where i - 1 is too old and i is new
-      if (timestamp - this.graphData[i - 1][0] > config.graphDuration && timestamp - this.graphData[i] <= config.graphDuration) {
-        this.graphData.splice(0, i)
-        break
-      }
-    }
+    const filterTimestamp = new Date().getTime() - config.graphDuration
+    this.graphData = this.graphData.filter(point => point[0] >= filterTimestamp)
 
     return true
   }
diff --git a/package-lock.json b/package-lock.json
index 9a497ae..08f317a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "minetrack",
-  "version": "5.1.0",
+  "version": "5.1.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 4cb1c85..df644e5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "minetrack",
-  "version": "5.1.1",
+  "version": "5.1.2",
   "description": "A Minecraft server tracker that lets you focus on the basics.",
   "main": "main.js",
   "dependencies": {