diff --git a/build.gradle b/build.gradle
index 04eb73f1e..ac9652d0a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,4 +1,4 @@
-//version: 1692122114
+//version: 1695323114
 /*
  DO NOT CHANGE THIS FILE!
  Also, you may replace this file at any time if there is an update available.
@@ -599,8 +599,11 @@ repositories {
             }
         }
         maven {
-            name = "ic2-mirror"
-            url = "https://maven2.ic2.player.to/"
+            name = "ic2"
+            url = getURL("https://maven.ic2.player.to/", "https://maven2.ic2.player.to/")
+            content {
+                includeGroup "net.industrial-craft"
+            }
             metadataSources {
                 mavenPom()
                 artifact()
@@ -1568,6 +1571,25 @@ def getSecondaryArtifacts() {
     return secondaryArtifacts
 }
 
+def getURL(String main, String fallback) {
+    return pingURL(main, 10000) ? main : fallback
+}
+
+// credit: https://stackoverflow.com/a/3584332
+def pingURL(String url, int timeout) {
+    url = url.replaceFirst("^https", "http") // Otherwise an exception may be thrown on invalid SSL certificates.
+    try {
+        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection()
+        connection.setConnectTimeout(timeout)
+        connection.setReadTimeout(timeout)
+        connection.setRequestMethod("HEAD")
+        int responseCode = connection.getResponseCode()
+        return 200 <= responseCode && responseCode <= 399
+    } catch (IOException ignored) {
+        return false
+    }
+}
+
 // For easier scripting of things that require variables defined earlier in the buildscript
 if (file('addon.late.gradle.kts').exists()) {
     apply from: 'addon.late.gradle.kts'
diff --git a/dependencies.gradle b/dependencies.gradle
index 4a609bf87..2d355bcf2 100644
--- a/dependencies.gradle
+++ b/dependencies.gradle
@@ -1,7 +1,7 @@
 // Add your dependencies here
 
 dependencies {
-    api("com.github.GTNewHorizons:GT5-Unofficial:5.09.44.18:dev")
+    api("com.github.GTNewHorizons:GT5-Unofficial:5.09.44.19:dev")
     api("com.github.GTNewHorizons:Yamcl:0.5.86:dev")
     api("com.github.GTNewHorizons:Baubles:1.0.1.16:dev")
 
@@ -16,7 +16,7 @@ dependencies {
     compileOnly("com.github.GTNewHorizons:WitcheryExtras:1.1.14:dev") { transitive = false }
     compileOnly("thaumcraft:Thaumcraft:1.7.10-4.2.3.5:dev") { transitive = false }
     compileOnly("curse.maven:witchery-69673:2234410") { transitive = false }
-    compileOnly("com.github.GTNewHorizons:GTplusplus:1.10.8:dev") { transitive = false }
+    compileOnly("com.github.GTNewHorizons:GTplusplus:1.10.9:dev") { transitive = false }
     compileOnly("com.github.GTNewHorizons:Chisel:2.11.4-GTNH:dev") { transitive = false }
     compileOnly("com.github.GTNewHorizons:Botania:1.10.0-GTNH:dev") { transitive = false }
     compileOnly("com.github.GTNewHorizons:BloodMagic:1.4.3:dev") { transitive = false }