diff --git a/gradle.properties b/gradle.properties
index d79444f..a7589dd 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -8,14 +8,14 @@ org.gradle.jvmargs=-Xmx1G
 # To remap the mixin locations:
 # gradlew migrateMappings --mappings "1.16.1+build.9"
 
-minecraft_version=1.21.1
-yarn_mappings=1.21.1+build.3
+minecraft_version=1.21.3
+yarn_mappings=1.21.3+build.2
 loader_version=0.16.9
 
 #Fabric api
-fabric_version=0.110.0+1.21.1
+fabric_version=0.110.0+1.21.3
 
 # Mod Properties
-mod_version = 1.21.1-fabric-1
+mod_version = 1.21.3-fabric-1
 maven_group = net.torocraft
 archives_base_name = torohealth
diff --git a/src/main/java/net/torocraft/torohealth/bars/HealthBarRenderer.java b/src/main/java/net/torocraft/torohealth/bars/HealthBarRenderer.java
index 0e54c14..d7e636d 100644
--- a/src/main/java/net/torocraft/torohealth/bars/HealthBarRenderer.java
+++ b/src/main/java/net/torocraft/torohealth/bars/HealthBarRenderer.java
@@ -5,10 +5,10 @@
 import java.util.List;
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.font.TextRenderer;
+import net.minecraft.client.gl.ShaderProgramKeys;
 import net.minecraft.client.render.BufferBuilder;
 import net.minecraft.client.render.BufferRenderer;
 import net.minecraft.client.render.Camera;
-import net.minecraft.client.render.GameRenderer;
 import net.minecraft.client.render.Tessellator;
 import net.minecraft.client.render.VertexConsumerProvider;
 import net.minecraft.client.render.VertexFormat;
@@ -91,7 +91,7 @@ public static void renderInWorld(MatrixStack matrix,
       return;
     }
 
-    RenderSystem.setShader(GameRenderer::getPositionColorProgram);
+    RenderSystem.setShader(ShaderProgramKeys.POSITION_COLOR);
     RenderSystem.enableDepthTest();
     RenderSystem.enableBlend();
     RenderSystem.blendFuncSeparate(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA, GL11.GL_ONE,
@@ -193,7 +193,7 @@ private static void drawBar(Matrix4f matrix4f, double x, double y, float width,
     float b = (color & 255) / 255.0F;
 
     RenderSystem.setShaderColor(r, g, b, 1);
-    RenderSystem.setShader(GameRenderer::getPositionTexProgram);
+    RenderSystem.setShader(ShaderProgramKeys.POSITION_TEX);
     RenderSystem.setShaderTexture(0, GUI_BARS_TEXTURES);
     RenderSystem.enableBlend();
 
diff --git a/src/main/java/net/torocraft/torohealth/bars/ParticleRenderer.java b/src/main/java/net/torocraft/torohealth/bars/ParticleRenderer.java
index f06eb57..c7b3f12 100644
--- a/src/main/java/net/torocraft/torohealth/bars/ParticleRenderer.java
+++ b/src/main/java/net/torocraft/torohealth/bars/ParticleRenderer.java
@@ -2,8 +2,8 @@
 
 import com.mojang.blaze3d.systems.RenderSystem;
 import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gl.ShaderProgramKeys;
 import net.minecraft.client.render.Camera;
-import net.minecraft.client.render.GameRenderer;
 import net.minecraft.client.render.VertexConsumerProvider;
 import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.util.math.MathHelper;
@@ -46,7 +46,7 @@ private static void renderParticle(MatrixStack matrix, VertexConsumerProvider ve
     matrix.multiply(RotationAxis.POSITIVE_X.rotationDegrees(camera.getPitch()));
     matrix.scale(-scaleToGui, -scaleToGui, scaleToGui);
 
-    RenderSystem.setShader(GameRenderer::getPositionColorProgram);
+    RenderSystem.setShader(ShaderProgramKeys.POSITION_COLOR);
     RenderSystem.enableDepthTest();
     RenderSystem.enableBlend();
     RenderSystem.blendFuncSeparate(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA, GL11.GL_ONE,
diff --git a/src/main/java/net/torocraft/torohealth/display/BarDisplay.java b/src/main/java/net/torocraft/torohealth/display/BarDisplay.java
index e1a5098..b83c475 100644
--- a/src/main/java/net/torocraft/torohealth/display/BarDisplay.java
+++ b/src/main/java/net/torocraft/torohealth/display/BarDisplay.java
@@ -2,8 +2,8 @@
 
 import com.mojang.blaze3d.systems.RenderSystem;
 import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gl.ShaderProgramKeys;
 import net.minecraft.client.gui.DrawContext;
-import net.minecraft.client.render.GameRenderer;
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.util.Identifier;
 import net.minecraft.util.math.MathHelper;
@@ -27,7 +27,7 @@ public void draw(DrawContext drawContext, LivingEntity entity) {
     int xOffset = 0;
 
     RenderSystem.setShaderColor(1.0F, 1.0F, 1.0F, 1.0F);
-    RenderSystem.setShader(GameRenderer::getPositionTexProgram);
+    RenderSystem.setShader(ShaderProgramKeys.POSITION_TEX);
     RenderSystem.enableBlend();
 
     HealthBarRenderer.render(drawContext.getMatrices(), drawContext.getVertexConsumers(), entity, 63, 14, 130, false);
diff --git a/src/main/java/net/torocraft/torohealth/util/EntityUtil.java b/src/main/java/net/torocraft/torohealth/util/EntityUtil.java
index 1f8629c..19a62bc 100644
--- a/src/main/java/net/torocraft/torohealth/util/EntityUtil.java
+++ b/src/main/java/net/torocraft/torohealth/util/EntityUtil.java
@@ -49,7 +49,7 @@ public static boolean showHealthBar(Entity entity, MinecraftClient client) {
             && (!entity.isInvisibleTo(client.player)
                 || entity.isGlowing()
                 || entity.isOnFire()
-                || entity instanceof CreeperEntity && ((CreeperEntity) entity).shouldRenderOverlay() // charged creeper
+                || entity instanceof CreeperEntity && ((CreeperEntity) entity).isCharged() // charged creeper
                 || StreamSupport.stream(living.getEquippedItems().spliterator(), false).anyMatch(is -> !is.isEmpty()))
             && entity != client.player
             && !entity.isSpectator();