diff --git a/README.md b/README.md
index 5973eb7d..3d446d02 100644
--- a/README.md
+++ b/README.md
@@ -47,8 +47,8 @@ repositories {
 #### Fabric
 ```
 dependencies {
-    modCompileOnly 'com.cinemamod:mcef:2.1.6-1.21.4'
-    modRuntimeOnly 'com.cinemamod:mcef-fabric:2.1.6-1.21.4'
+    modCompileOnly 'com.cinemamod:mcef:2.1.6-1.21.5'
+    modRuntimeOnly 'com.cinemamod:mcef-fabric:2.1.6-1.21.5'
 }
 ```
 See the [mcef-fabric-example-mod](https://github.com/CinemaMod/mcef-fabric-example-mod) for a complete example Fabric project.
@@ -56,8 +56,8 @@ See the [mcef-fabric-example-mod](https://github.com/CinemaMod/mcef-fabric-examp
 #### NeoForge
 ```
 dependencies {
-    compileOnly fg.deobf('com.cinemamod:mcef:2.1.6-1.21.4')
-    runtimeOnly fg.deobf('com.cinemamod:mcef-neoforge:2.1.6-1.21.41')
+    compileOnly fg.deobf('com.cinemamod:mcef:2.1.6-1.21.5')
+    runtimeOnly fg.deobf('com.cinemamod:mcef-neoforge:2.1.6-1.21.5')
 }
 ```
 ### Building & Modifying MCEF
diff --git a/fabric/gradle.properties b/fabric/gradle.properties
index 26c8e0b6..b94c4619 100644
--- a/fabric/gradle.properties
+++ b/fabric/gradle.properties
@@ -1,8 +1,8 @@
 org.gradle.jvmargs=-Xmx4G
 org.gradle.daemon=false
 
-minecraft_dependency=1.21.4
-curseforge_minecraft_version=1.21.4
+minecraft_dependency=1.21.5
+curseforge_minecraft_version=1.21.5
 
 fabric_version=0.119.5+1.21.5
 min_fabric_version=0.119.5+1.21.5
diff --git a/fabric/src/main/resources/fabric.mod.json b/fabric/src/main/resources/fabric.mod.json
index 6c43d10d..b571cdc1 100644
--- a/fabric/src/main/resources/fabric.mod.json
+++ b/fabric/src/main/resources/fabric.mod.json
@@ -29,7 +29,7 @@
   ],
   "depends": {
     "fabricloader": ">=${fabric_loader_version}",
-    "minecraft": [">=1.21.4"],
+    "minecraft": [">=1.21.5"],
     "java": ">=${java_version}"
   },
   "breaks": {
diff --git a/gradle.properties b/gradle.properties
index fe06a380..2a432abc 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,12 +2,12 @@ org.gradle.jvmargs=-Xmx4G
 org.gradle.daemon=false
 
 java_version=21
-minecraft_version=1.21.4
-fabric_loader_version=0.16.9
+minecraft_version=1.21.5
+fabric_loader_version=0.16.14
 mod_compatibility_version=21
 
 # For snapshots, append -SNAPSHOT
-mcef_version=2.1.6-1.21.4
+mcef_version=2.1.6-1.21.5
 
 mod_id=mcef
 mod_name=MCEF (Minecraft Chromium Embedded Framework)
diff --git a/neoforge/gradle.properties b/neoforge/gradle.properties
index 62d3bd03..09232266 100644
--- a/neoforge/gradle.properties
+++ b/neoforge/gradle.properties
@@ -12,5 +12,5 @@ curse_id=636236
 release_type=release
 recommended=true
 
-neogradle.subsystems.parchment.minecraftVersion=1.21.4
-neogradle.subsystems.parchment.mappingsVersion=2025.01.05
+neogradle.subsystems.parchment.minecraftVersion=1.21.5
+neogradle.subsystems.parchment.mappingsVersion=2025.06.01
diff --git a/neoforge/src/main/resources/META-INF/neoforge.mods.toml b/neoforge/src/main/resources/META-INF/neoforge.mods.toml
index fcc9a7d6..bfb3624d 100644
--- a/neoforge/src/main/resources/META-INF/neoforge.mods.toml
+++ b/neoforge/src/main/resources/META-INF/neoforge.mods.toml
@@ -24,6 +24,6 @@ description='''A Minecraft mod and library for adding the Chromium web browser i
 [[dependencies.${mod_id}]]
     modId="minecraft"
     mandatory=true
-    versionRange="[1.21.4,)"
+    versionRange="[1.21.5,)"
     ordering="NONE"
     side="BOTH"