diff --git a/source/vibe/core/concurrency.d b/source/vibe/core/concurrency.d
index e0d1326..11b3cc2 100644
--- a/source/vibe/core/concurrency.d
+++ b/source/vibe/core/concurrency.d
@@ -16,7 +16,6 @@ import core.time;
 import std.traits;
 import std.typecons;
 import std.typetuple;
-import std.variant;
 import std.string;
 import vibe.core.task;
 
diff --git a/source/vibe/core/core.d b/source/vibe/core/core.d
index b45fa72..433b6fe 100644
--- a/source/vibe/core/core.d
+++ b/source/vibe/core/core.d
@@ -29,7 +29,6 @@ import std.range : empty, front, popFront;
 import std.string;
 import std.traits : isFunctionPointer;
 import std.typecons : Flag, Yes, Typedef, Tuple, tuple;
-import std.variant;
 import core.atomic;
 import core.sync.condition;
 import core.sync.mutex;
diff --git a/source/vibe/core/task.d b/source/vibe/core/task.d
index dfbbb61..ad8f704 100644
--- a/source/vibe/core/task.d
+++ b/source/vibe/core/task.d
@@ -15,7 +15,6 @@ import core.thread;
 import std.exception;
 import std.traits;
 import std.typecons;
-import std.variant;
 
 
 /** Represents a single task as started using vibe.core.runTask.