diff --git a/adapters/fabric/build.gradle b/adapters/fabric/build.gradle
index f5aefa5e2..e908b0afc 100644
--- a/adapters/fabric/build.gradle
+++ b/adapters/fabric/build.gradle
@@ -61,7 +61,7 @@ apply from: file('../../gradle/volmlib-stamp.gradle')
 
 Properties rootProperties = new Properties()
 file('../../gradle.properties').withInputStream { InputStream stream -> rootProperties.load(stream) }
-String irisVersion = providers.gradleProperty('irisVersion').getOrElse(rootProperties.getProperty('irisVersion', '4.3.3'))
+String irisVersion = providers.gradleProperty('irisVersion').getOrElse(rootProperties.getProperty('irisVersion', '4.3.4'))
 String minecraftVersion = providers.gradleProperty('minecraftVersion').getOrElse(rootProperties.getProperty('minecraftVersion', '26.3'))
 String fabricLoaderVersion = providers.gradleProperty('fabricLoaderVersion').getOrElse(irisModTarget.fabricLoader.toString())
 Closure<String> irisArtifactName = { String platform, String targetVersion ->
diff --git a/adapters/forge/build.gradle b/adapters/forge/build.gradle
index 8aa91b5a8..41f44b1d1 100644
--- a/adapters/forge/build.gradle
+++ b/adapters/forge/build.gradle
@@ -59,7 +59,7 @@ apply from: file('../../gradle/volmlib-stamp.gradle')
 
 Properties rootProperties = new Properties()
 file('../../gradle.properties').withInputStream { InputStream stream -> rootProperties.load(stream) }
-String irisVersion = providers.gradleProperty('irisVersion').getOrElse(rootProperties.getProperty('irisVersion', '4.3.3'))
+String irisVersion = providers.gradleProperty('irisVersion').getOrElse(rootProperties.getProperty('irisVersion', '4.3.4'))
 String minecraftVersion = providers.gradleProperty('minecraftVersion').getOrElse(rootProperties.getProperty('minecraftVersion', '26.3'))
 String forgeVersion = providers.gradleProperty('forgeVersion').getOrElse(irisModTarget.forge.toString())
 Closure<String> loaderDisplayVersion = { String loaderVersion ->
diff --git a/adapters/neoforge/build.gradle b/adapters/neoforge/build.gradle
index a9bc3cda1..5b2a6b805 100644
--- a/adapters/neoforge/build.gradle
+++ b/adapters/neoforge/build.gradle
@@ -59,7 +59,7 @@ apply from: file('../../gradle/volmlib-stamp.gradle')
 
 Properties rootProperties = new Properties()
 file('../../gradle.properties').withInputStream { InputStream stream -> rootProperties.load(stream) }
-String irisVersion = providers.gradleProperty('irisVersion').getOrElse(rootProperties.getProperty('irisVersion', '4.3.3'))
+String irisVersion = providers.gradleProperty('irisVersion').getOrElse(rootProperties.getProperty('irisVersion', '4.3.4'))
 String minecraftVersion = providers.gradleProperty('minecraftVersion').getOrElse(rootProperties.getProperty('minecraftVersion', '26.3'))
 String neoForgeVersion = providers.gradleProperty('neoForgeVersion').getOrElse(irisModTarget.neoForge.toString())
 Closure<String> irisArtifactName = { String platform, String targetVersion ->
diff --git a/build.gradle b/build.gradle
index 0289b1e68..8f6c80e23 100644
--- a/build.gradle
+++ b/build.gradle
@@ -67,7 +67,7 @@ interface IrisFileOperations {
 IrisFileOperations irisFileOperations = objects.newInstance(IrisFileOperations)
 
 group = 'art.arcane'
-version = providers.gradleProperty('irisVersion').getOrElse('4.3.3')
+version = providers.gradleProperty('irisVersion').getOrElse('4.3.4')
 
 project(':core') {
     group = 'art.arcane'
diff --git a/gradle.properties b/gradle.properties
index c92d84e13..d5745b3e0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -21,7 +21,7 @@ org.gradle.jvmargs=-Xmx3072m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF
 org.gradle.caching=true
 org.gradle.configureondemand=false
 
-irisVersion=4.3.3
+irisVersion=4.3.4
 minecraftVersion=26.3
 # Bukkit plugin api-version: lowest supported Minecraft release line so one artifact loads on 26.1.2 through 26.3
 apiVersion=26.1