diff --git a/bukkit-helper-117/build.gradle b/bukkit-helper-117/build.gradle
index 4b377aa6..ecd5efbb 100644
--- a/bukkit-helper-117/build.gradle
+++ b/bukkit-helper-117/build.gradle
@@ -6,6 +6,8 @@ eclipse {
 
 description = 'bukkit-helper-1.17'
 
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaLanguageVersion.of(16) // Need this here so eclipse task generates correctly.
+
 dependencies {
   implementation project(':bukkit-helper')
   implementation project(':dynmap-api')
diff --git a/bukkit-helper-118-2/build.gradle b/bukkit-helper-118-2/build.gradle
index 9ff506bd..a583bb88 100644
--- a/bukkit-helper-118-2/build.gradle
+++ b/bukkit-helper-118-2/build.gradle
@@ -6,6 +6,8 @@ eclipse {
 
 description = 'bukkit-helper-1.18.2'
 
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaLanguageVersion.of(17) // Need this here so eclipse task generates correctly.
+
 dependencies {
   implementation project(':bukkit-helper')
   implementation project(':dynmap-api')
diff --git a/bukkit-helper-118/build.gradle b/bukkit-helper-118/build.gradle
index 0ee6b6f1..f8833535 100644
--- a/bukkit-helper-118/build.gradle
+++ b/bukkit-helper-118/build.gradle
@@ -6,6 +6,8 @@ eclipse {
 
 description = 'bukkit-helper-1.18'
 
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaLanguageVersion.of(17) // Need this here so eclipse task generates correctly.
+
 dependencies {
   implementation project(':bukkit-helper')
   implementation project(':dynmap-api')
diff --git a/bukkit-helper-119-3/build.gradle b/bukkit-helper-119-3/build.gradle
index c904f32e..d5f8ac03 100644
--- a/bukkit-helper-119-3/build.gradle
+++ b/bukkit-helper-119-3/build.gradle
@@ -6,6 +6,8 @@ eclipse {
 
 description = 'bukkit-helper-1.19.3'
 
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaLanguageVersion.of(17) // Need this here so eclipse task generates correctly.
+
 dependencies {
   implementation project(':bukkit-helper')
   implementation project(':dynmap-api')
diff --git a/bukkit-helper-119-4/build.gradle b/bukkit-helper-119-4/build.gradle
index 7b077b59..962e044d 100644
--- a/bukkit-helper-119-4/build.gradle
+++ b/bukkit-helper-119-4/build.gradle
@@ -6,6 +6,8 @@ eclipse {
 
 description = 'bukkit-helper-1.19.4'
 
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaLanguageVersion.of(17) // Need this here so eclipse task generates correctly.
+
 dependencies {
   implementation project(':bukkit-helper')
   implementation project(':dynmap-api')
diff --git a/bukkit-helper-119/build.gradle b/bukkit-helper-119/build.gradle
index 74aa29e4..5701c996 100644
--- a/bukkit-helper-119/build.gradle
+++ b/bukkit-helper-119/build.gradle
@@ -6,6 +6,8 @@ eclipse {
 
 description = 'bukkit-helper-1.19'
 
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaLanguageVersion.of(17) // Need this here so eclipse task generates correctly.
+
 dependencies {
   implementation project(':bukkit-helper')
   implementation project(':dynmap-api')
diff --git a/bukkit-helper/.settings/org.eclipse.jdt.core.prefs b/bukkit-helper/.settings/org.eclipse.jdt.core.prefs
index 50506364..f4d20a80 100644
--- a/bukkit-helper/.settings/org.eclipse.jdt.core.prefs
+++ b/bukkit-helper/.settings/org.eclipse.jdt.core.prefs
@@ -1,5 +1,5 @@
 #
-#Tue May 09 18:29:40 CDT 2023
+#Wed May 10 08:52:08 CDT 2023
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8