diff --git a/1_12/build.gradle b/1_12/build.gradle
index 49313d7..8080f6c 100644
--- a/1_12/build.gradle
+++ b/1_12/build.gradle
@@ -102,7 +102,7 @@ sourceSets {
 dependencies {
     implementation 'net.minecraft:launchwrapper:1.12'
     jarLibs 'com.github.ImpactDevelopment:SimpleTweaker:1.2'
-    jarLibs('org.spongepowered:mixin:0.7.11-SNAPSHOT') {
+    jarLibs('org.spongepowered:mixin:0.8.7') {
         exclude module: 'launchwrapper'
         exclude module: 'guava'
         exclude module: 'gson'
diff --git a/1_16/build.gradle b/1_16/build.gradle
index 5092b8e..148f6fe 100644
--- a/1_16/build.gradle
+++ b/1_16/build.gradle
@@ -105,7 +105,7 @@ for (String platform_capitalized : ['Fabric', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_17/build.gradle b/1_17/build.gradle
index 5092b8e..148f6fe 100644
--- a/1_17/build.gradle
+++ b/1_17/build.gradle
@@ -105,7 +105,7 @@ for (String platform_capitalized : ['Fabric', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_18/build.gradle b/1_18/build.gradle
index 5092b8e..148f6fe 100644
--- a/1_18/build.gradle
+++ b/1_18/build.gradle
@@ -105,7 +105,7 @@ for (String platform_capitalized : ['Fabric', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_19/build.gradle b/1_19/build.gradle
index 5092b8e..148f6fe 100644
--- a/1_19/build.gradle
+++ b/1_19/build.gradle
@@ -105,7 +105,7 @@ for (String platform_capitalized : ['Fabric', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_20/build.gradle b/1_20/build.gradle
index cf9424f..e6c9d5c 100644
--- a/1_20/build.gradle
+++ b/1_20/build.gradle
@@ -131,7 +131,7 @@ for (String platform_capitalized : ['Fabric', 'Neoforge', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_20_1/build.gradle b/1_20_1/build.gradle
index 91e5179..85f9caf 100644
--- a/1_20_1/build.gradle
+++ b/1_20_1/build.gradle
@@ -111,7 +111,7 @@ for (String platform_capitalized : ['Fabric', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_20_6/build.gradle b/1_20_6/build.gradle
index f5f591f..9ed530c 100644
--- a/1_20_6/build.gradle
+++ b/1_20_6/build.gradle
@@ -137,7 +137,7 @@ for (String platform_capitalized : ['Fabric', 'Neoforge', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_21/build.gradle b/1_21/build.gradle
index 4681d57..7d4c41e 100644
--- a/1_21/build.gradle
+++ b/1_21/build.gradle
@@ -131,7 +131,7 @@ for (String platform_capitalized : ['Fabric', 'Neoforge', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_21_5/build.gradle b/1_21_5/build.gradle
index 4681d57..7d4c41e 100644
--- a/1_21_5/build.gradle
+++ b/1_21_5/build.gradle
@@ -131,7 +131,7 @@ for (String platform_capitalized : ['Fabric', 'Neoforge', 'Lexforge']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!
diff --git a/1_7_10/build.gradle b/1_7_10/build.gradle
index f47460b..acbe17c 100644
--- a/1_7_10/build.gradle
+++ b/1_7_10/build.gradle
@@ -101,7 +101,7 @@ sourceSets {
 dependencies {
     implementation 'net.minecraft:launchwrapper:1.12'
     jarLibs 'com.github.ImpactDevelopment:SimpleTweaker:1.2'
-    jarLibs('org.spongepowered:mixin:0.7.11-SNAPSHOT') {
+    jarLibs('org.spongepowered:mixin:0.8.7') {
         exclude module: 'launchwrapper'
         exclude module: 'guava'
         exclude module: 'gson'
diff --git a/1_8_9/build.gradle b/1_8_9/build.gradle
index fb36329..0787639 100644
--- a/1_8_9/build.gradle
+++ b/1_8_9/build.gradle
@@ -102,7 +102,7 @@ sourceSets {
 dependencies {
     implementation 'net.minecraft:launchwrapper:1.12'
     jarLibs 'com.github.ImpactDevelopment:SimpleTweaker:1.2'
-    jarLibs('org.spongepowered:mixin:0.7.11-SNAPSHOT') {
+    jarLibs('org.spongepowered:mixin:0.8.7') {
         exclude module: 'launchwrapper'
         exclude module: 'guava'
         exclude module: 'gson'
diff --git a/gametest/build.gradle b/gametest/build.gradle
index 7fce957..099b942 100644
--- a/gametest/build.gradle
+++ b/gametest/build.gradle
@@ -108,7 +108,7 @@ configurations {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
 
diff --git a/snapshots/build.gradle b/snapshots/build.gradle
index cfc32fd..c4ae66f 100644
--- a/snapshots/build.gradle
+++ b/snapshots/build.gradle
@@ -86,7 +86,7 @@ for (String platform_capitalized : ['Fabric']) {
 }
 
 dependencies {
-    compileOnly 'org.spongepowered:mixin:0.8.5-SNAPSHOT'
+    compileOnly 'org.spongepowered:mixin:0.8.7'
     compileOnly 'me.earth.headlessmc:headlessmc:1.8.1'
     lwjglAgent 'me.earth.headlessmc:headlessmc-lwjgl:1.8.1'
     // yes, I actually want this at runtime to use assertions!