diff --git a/build.gradle b/build.gradle
index 62dc9eeaa..9ac175a9d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 plugins {
 	id "architectury-plugin" version "3.4-SNAPSHOT"
-	id "dev.architectury.loom" version "0.12.0-SNAPSHOT" apply false
+	id "dev.architectury.loom" version "1.6-SNAPSHOT" apply false
 	id "com.matthewprenger.cursegradle" version "1.4.0" apply false
 }
 
diff --git a/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/ITaskScreen.java b/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/ITaskScreen.java
index 729cb3c7f..afd4f8030 100644
--- a/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/ITaskScreen.java
+++ b/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/ITaskScreen.java
@@ -1,15 +1,15 @@
 package dev.ftb.mods.ftbquests.block.entity;
 
 import net.minecraft.world.item.ItemStack;
+import org.jetbrains.annotations.NotNull;
 
-import javax.annotation.Nonnull;
 import java.util.Optional;
 import java.util.UUID;
 
 public interface ITaskScreen {
     Optional<TaskScreenBlockEntity> getCoreScreen();
 
-    @Nonnull
+    @NotNull
     UUID getTeamId();
 
     boolean isInputOnly();
diff --git a/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/TaskScreenAuxBlockEntity.java b/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/TaskScreenAuxBlockEntity.java
index 0148cb2cc..db0542c79 100644
--- a/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/TaskScreenAuxBlockEntity.java
+++ b/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/TaskScreenAuxBlockEntity.java
@@ -11,13 +11,12 @@
 import net.minecraft.world.level.block.state.BlockState;
 import org.jetbrains.annotations.NotNull;
 
-import javax.annotation.Nonnull;
 import java.lang.ref.WeakReference;
 import java.util.Optional;
 import java.util.UUID;
 
 public class TaskScreenAuxBlockEntity extends BlockEntity implements ITaskScreen, Nameable {
-    @Nonnull
+    @NotNull
     private WeakReference<TaskScreenBlockEntity> coreScreen = new WeakReference<>(null);
     private BlockPos corePosPending;  // non-null after NBT load & before querying/resolving
 
@@ -46,7 +45,7 @@ public Optional<TaskScreenBlockEntity> getCoreScreen() {
         return Optional.ofNullable(coreScreen.get());
     }
 
-    public void setCoreScreen(@Nonnull TaskScreenBlockEntity coreScreen) {
+    public void setCoreScreen(@NotNull TaskScreenBlockEntity coreScreen) {
         // this must ONLY be called from TaskScreenBlock#onPlacedBy() !
         if (this.coreScreen.get() != null) throw new IllegalStateException("coreScreen is already set and can't be changed!");
 
diff --git a/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/TaskScreenBlockEntity.java b/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/TaskScreenBlockEntity.java
index 98cc5b3ec..a898c5e95 100644
--- a/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/TaskScreenBlockEntity.java
+++ b/common/src/main/java/dev/ftb/mods/ftbquests/block/entity/TaskScreenBlockEntity.java
@@ -24,9 +24,9 @@
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.level.block.state.properties.BlockStateProperties;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import javax.annotation.Nonnull;
 import java.util.Optional;
 import java.util.UUID;
 
@@ -40,7 +40,8 @@ public class TaskScreenBlockEntity extends BlockEntity implements ITaskScreen {
     private boolean textShadow = false;
     private ItemStack inputModeIcon = ItemStack.EMPTY;
     private ItemStack skin = ItemStack.EMPTY;
-    @Nonnull private UUID teamId = Util.NIL_UUID;
+    @NotNull
+    private UUID teamId = Util.NIL_UUID;
     public float[] fakeTextureUV = null;  // null for unknown, 0-array for no texture, 4-array for a texture
     private TeamData cachedTeamData = null;
 
@@ -109,13 +110,13 @@ public void setTextShadow(boolean textShadow) {
         this.textShadow = textShadow;
     }
 
-    public void setTeamId(@Nonnull UUID teamId) {
+    public void setTeamId(@NotNull UUID teamId) {
         this.teamId = teamId;
         cachedTeamData = null;
     }
 
     @Override
-    @Nonnull
+    @NotNull
     public UUID getTeamId() {
         return teamId;
     }
diff --git a/common/src/main/java/dev/ftb/mods/ftbquests/gui/MultilineTextEditorScreen.java b/common/src/main/java/dev/ftb/mods/ftbquests/gui/MultilineTextEditorScreen.java
index db2f2ada0..67e7d44c2 100644
--- a/common/src/main/java/dev/ftb/mods/ftbquests/gui/MultilineTextEditorScreen.java
+++ b/common/src/main/java/dev/ftb/mods/ftbquests/gui/MultilineTextEditorScreen.java
@@ -22,8 +22,8 @@
 import net.minecraft.client.gui.components.Whence;
 import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.network.chat.Component;
+import org.jetbrains.annotations.NotNull;
 
-import javax.annotation.Nonnull;
 import java.util.*;
 import java.util.regex.Pattern;
 
@@ -233,7 +233,7 @@ private void resetFormatting() {
 		}
 	}
 
-	private static String stripFormatting(@Nonnull String selectedText) {
+	private static String stripFormatting(@NotNull String selectedText) {
 		return STRIP_FORMATTING_PATTERN.matcher(selectedText).replaceAll("");
 	}
 
@@ -462,6 +462,6 @@ public ToolbarButton withTooltip(Component... lines) {
 		}
 	}
 
-	private record HistoryElement(@Nonnull String text, int cursorPos) {
+	private record HistoryElement(@NotNull String text, int cursorPos) {
 	}
 }
diff --git a/common/src/main/java/dev/ftb/mods/ftbquests/quest/QuestFile.java b/common/src/main/java/dev/ftb/mods/ftbquests/quest/QuestFile.java
index 812d9f609..b0c40fc43 100644
--- a/common/src/main/java/dev/ftb/mods/ftbquests/quest/QuestFile.java
+++ b/common/src/main/java/dev/ftb/mods/ftbquests/quest/QuestFile.java
@@ -37,9 +37,9 @@
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
 import org.apache.commons.lang3.mutable.MutableInt;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import javax.annotation.Nonnull;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -254,7 +254,7 @@ public Chapter getChapter(long id) {
 		return object instanceof Chapter ? (Chapter) object : null;
 	}
 
-	@Nonnull
+	@NotNull
 	public Chapter getChapterOrThrow(long id) {
 		if (getBase(id) instanceof Chapter c) return c;
 		throw new IllegalArgumentException("Unknown chapter ID: c");
diff --git a/common/src/main/java/dev/ftb/mods/ftbquests/quest/task/FluidTask.java b/common/src/main/java/dev/ftb/mods/ftbquests/quest/task/FluidTask.java
index 6531eb188..bb473cd97 100644
--- a/common/src/main/java/dev/ftb/mods/ftbquests/quest/task/FluidTask.java
+++ b/common/src/main/java/dev/ftb/mods/ftbquests/quest/task/FluidTask.java
@@ -21,8 +21,8 @@
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.level.material.Fluid;
 import net.minecraft.world.level.material.Fluids;
+import org.jetbrains.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.util.Optional;
 
 /**
diff --git a/common/src/main/java/dev/ftb/mods/ftbquests/util/NBTUtils.java b/common/src/main/java/dev/ftb/mods/ftbquests/util/NBTUtils.java
index 0662bc81c..71223e65a 100644
--- a/common/src/main/java/dev/ftb/mods/ftbquests/util/NBTUtils.java
+++ b/common/src/main/java/dev/ftb/mods/ftbquests/util/NBTUtils.java
@@ -7,8 +7,8 @@
 import net.minecraft.nbt.StringTag;
 import net.minecraft.nbt.Tag;
 import net.minecraft.world.item.ItemStack;
+import org.jetbrains.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.util.Set;
 import java.util.stream.IntStream;
 
diff --git a/fabric/build.gradle b/fabric/build.gradle
index 5f1630dbf..8f9356529 100644
--- a/fabric/build.gradle
+++ b/fabric/build.gradle
@@ -52,18 +52,18 @@ processResources {
 
 shadowJar {
 	configurations = [project.configurations.shadowCommon]
-	classifier "dev-shadow"
+	setArchiveClassifier "dev-shadow"
 }
 
 remapJar {
 	input.set shadowJar.archiveFile
 	dependsOn shadowJar
 	archiveBaseName.set "${rootProject.archives_base_name}-${project.name}"
-	archiveClassifier.set null
+	setArchiveClassifier null
 }
 
 jar {
-	classifier "dev"
+	setArchiveClassifier "dev"
 }
 
 components.java {
diff --git a/forge/build.gradle b/forge/build.gradle
index 51aa07567..c57ce7203 100644
--- a/forge/build.gradle
+++ b/forge/build.gradle
@@ -65,14 +65,14 @@ shadowJar {
 	exclude "fabric.mod.json"
 
 	configurations = [project.configurations.shadowCommon]
-	classifier "dev-shadow"
+	setArchiveClassifier "dev-shadow"
 }
 
 remapJar {
 	input.set shadowJar.archiveFile
 	dependsOn shadowJar
 	archiveBaseName.set "${rootProject.archives_base_name}-${project.name}"
-	archiveClassifier.set null
+	setArchiveClassifier null
 }
 
 jar {
@@ -88,7 +88,7 @@ jar {
 		])
 	}
 
-	classifier "dev"
+	setArchiveClassifier "dev"
 }
 
 components.java {
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ae04661ee..0d1842103 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists