diff --git a/index.json b/index.json
index 496931adf..363db01be 100644
--- a/index.json
+++ b/index.json
@@ -13,7 +13,7 @@
         },
         {
             "name": "Intermediary Mappings",
-            "sha256": "9e2d14efcf2ec742162c812044139e7798f91defe6dfba8dc71c1b5268b0e1c7",
+            "sha256": "75c4749f41a676114fad66d036e98753f5514d9336a0346f66056207cf4f042a",
             "uid": "net.fabricmc.intermediary"
         },
         {
diff --git a/net.fabricmc.intermediary/1.20.5-pre4.json b/net.fabricmc.intermediary/1.20.5-pre4.json
new file mode 100644
index 000000000..cdbebad32
--- /dev/null
+++ b/net.fabricmc.intermediary/1.20.5-pre4.json
@@ -0,0 +1,22 @@
+{
+    "formatVersion": 1,
+    "libraries": [
+        {
+            "name": "net.fabricmc:intermediary:1.20.5-pre4",
+            "url": "https://maven.fabricmc.net"
+        }
+    ],
+    "name": "Intermediary Mappings",
+    "order": 11,
+    "releaseTime": "2024-04-17T13:07:31+00:00",
+    "requires": [
+        {
+            "equals": "1.20.5-pre4",
+            "uid": "net.minecraft"
+        }
+    ],
+    "type": "release",
+    "uid": "net.fabricmc.intermediary",
+    "version": "1.20.5-pre4",
+    "volatile": true
+}
\ No newline at end of file
diff --git a/net.fabricmc.intermediary/index.json b/net.fabricmc.intermediary/index.json
index 5a1bf5345..daf2a0322 100644
--- a/net.fabricmc.intermediary/index.json
+++ b/net.fabricmc.intermediary/index.json
@@ -3,6 +3,20 @@
     "name": "Intermediary Mappings",
     "uid": "net.fabricmc.intermediary",
     "versions": [
+        {
+            "recommended": true,
+            "releaseTime": "2024-04-17T13:07:31+00:00",
+            "requires": [
+                {
+                    "equals": "1.20.5-pre4",
+                    "uid": "net.minecraft"
+                }
+            ],
+            "sha256": "a98231f5013c9e045f2fb9cd28611b07b15696e7892f40c042ac026157c3bc3a",
+            "type": "release",
+            "version": "1.20.5-pre4",
+            "volatile": true
+        },
         {
             "recommended": true,
             "releaseTime": "2024-04-16T14:03:50+00:00",
diff --git a/net.fabricmc.intermediary/package.json b/net.fabricmc.intermediary/package.json
index 0d145c782..be7ad1d70 100644
--- a/net.fabricmc.intermediary/package.json
+++ b/net.fabricmc.intermediary/package.json
@@ -7,6 +7,7 @@
     "name": "Intermediary Mappings",
     "projectUrl": "https://fabricmc.net",
     "recommended": [
+        "1.20.5-pre4",
         "1.20.5-pre3",
         "1.20.5-pre2",
         "1.20.5-pre1",