diff --git a/build.gradle.kts b/build.gradle.kts
index 1faa5bf..0caeb43 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -173,8 +173,10 @@ dependencies {
     // Built once by the remapNms task above (vanilla 1.20.4 server + official
     // mappings) because the io.papermc.paper:paper:1.20.4 dev-bundle was purged.
     compileOnly(files(nmsMappedJar, nmsAuthlibJar))
-    // fastutil types are referenced by the NMS packet signatures (IntList).
-    compileOnly("it.unimi.dsi:fastutil:8.5.9")
+    // fastutil types (IntList) are referenced by the NMS packet signatures. 8.5.15
+    // matches the version pinned by the new-style paper-api platform (1.21.11+/26.x)
+    // and resolves fine against the older paper-api artifacts too.
+    compileOnly("it.unimi.dsi:fastutil:8.5.15")
     
     // Adventure API (for Component)
     compileOnly("net.kyori:adventure-api:4.14.0")
@@ -185,13 +187,16 @@ dependencies {
     
     // Shaded dependencies
     implementation("io.papermc:paperlib:1.0.7")
-    implementation("com.google.code.gson:gson:2.10.1")
+    implementation("com.google.code.gson:gson:2.11.0")
     implementation("org.bstats:bstats-bukkit:3.2.1")
     implementation("com.zaxxer:HikariCP:5.1.0")
     implementation("com.mysql:mysql-connector-j:8.3.0")
     implementation("org.apache.commons:commons-math3:3.6.1")
-    compileOnly("com.sk89q.worldedit:worldedit-core:7.3.6")
-    compileOnly("com.sk89q.worldedit:worldedit-bukkit:7.3.6")
+    // worldedit-core brings its own platform constraint on fastutil (strictly 8.5.12),
+    // which conflicts with the new-style paper-api platform (8.5.15+); we only need
+    // worldedit's own classes (Clipboard, BlockVector3, ...), not its transitive deps.
+    compileOnly("com.sk89q.worldedit:worldedit-core:7.3.6") { isTransitive = false }
+    compileOnly("com.sk89q.worldedit:worldedit-bukkit:7.3.6") { isTransitive = false }
 
     // Provided dependencies (plugins)
     compileOnly("me.clip:placeholderapi:2.11.6")