3 files changed, 5 insertions, 5 deletions
diff --git a/spec/ruby/library/fiber/alive_spec.rb b/spec/ruby/library/fiber/alive_spec.rb
index 0c20a1c6b8..47149d5279 100644
--- a/spec/ruby/library/fiber/alive_spec.rb
+++ b/spec/ruby/library/fiber/alive_spec.rb
@@ -30,16 +30,16 @@ describe "Fiber#alive?" do
   it "returns false for a Fiber that's dead" do
     fiber = Fiber.new { true }
     fiber.resume
-    lambda { fiber.resume }.should raise_error(FiberError)
+    -> { fiber.resume }.should raise_error(FiberError)
     fiber.alive?.should be_false
   end
 
   it "always returns false for a dead Fiber" do
     fiber = Fiber.new { true }
     fiber.resume
-    lambda { fiber.resume }.should raise_error(FiberError)
+    -> { fiber.resume }.should raise_error(FiberError)
     fiber.alive?.should be_false
-    lambda { fiber.resume }.should raise_error(FiberError)
+    -> { fiber.resume }.should raise_error(FiberError)
     fiber.alive?.should be_false
     fiber.alive?.should be_false
   end
diff --git a/spec/ruby/library/fiber/resume_spec.rb b/spec/ruby/library/fiber/resume_spec.rb
index 3d86aed94e..dae717c8a1 100644
--- a/spec/ruby/library/fiber/resume_spec.rb
+++ b/spec/ruby/library/fiber/resume_spec.rb
@@ -7,6 +7,6 @@ describe "Fiber#resume" do
     fiber1 = Fiber.new { true }
     fiber2 = Fiber.new { fiber1.transfer; Fiber.yield }
     fiber2.resume
-    lambda { fiber2.resume }.should raise_error(FiberError)
+    -> { fiber2.resume }.should raise_error(FiberError)
   end
 end
diff --git a/spec/ruby/library/fiber/transfer_spec.rb b/spec/ruby/library/fiber/transfer_spec.rb
index 1063bebeda..d13053666c 100644
--- a/spec/ruby/library/fiber/transfer_spec.rb
+++ b/spec/ruby/library/fiber/transfer_spec.rb
@@ -44,7 +44,7 @@ describe "Fiber#transfer" do
 
   it "raises a FiberError when transferring to a Fiber which resumes itself" do
     fiber = Fiber.new { fiber.resume }
-    lambda { fiber.transfer }.should raise_error(FiberError)
+    -> { fiber.transfer }.should raise_error(FiberError)
   end
 
   it "works if Fibers in different Threads each transfer to a Fiber in the same Thread" do