diff --git a/CHANGELOG.md b/CHANGELOG.md
index af0bad05..0baa9a53 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ### Breaking Changes
 
-- None
+- RAILS_ENV cannot be specified for rake tasks (#776).
 
 ### Added
 
@@ -12,7 +12,7 @@
 
 ### Fixed
 
-- None
+- Rake tasks will no longer run against development environment when using a Spring-ified rake binstub (#776).
 
 ## 3.1.0 - 2020-07-23
 
diff --git a/lib/parallel_tests/tasks.rb b/lib/parallel_tests/tasks.rb
index 415ac1fc..406fece4 100644
--- a/lib/parallel_tests/tasks.rb
+++ b/lib/parallel_tests/tasks.rb
@@ -5,7 +5,7 @@ module ParallelTests
   module Tasks
     class << self
       def rails_env
-        ENV['RAILS_ENV'] || 'test'
+        'test'
       end
 
       def rake_bin
diff --git a/spec/parallel_tests/tasks_spec.rb b/spec/parallel_tests/tasks_spec.rb
index acc93d2d..0ab65b6b 100644
--- a/spec/parallel_tests/tasks_spec.rb
+++ b/spec/parallel_tests/tasks_spec.rb
@@ -35,13 +35,13 @@
   end
 
   describe ".rails_env" do
-    it "should be test when nothing was set" do
+    it "should be test" do
       expect(ParallelTests::Tasks.rails_env).to eq("test")
     end
 
-    it "should be whatever was set" do
+    it "should disregard whatever was set" do
       ENV["RAILS_ENV"] = "foo"
-      expect(ParallelTests::Tasks.rails_env).to eq("foo")
+      expect(ParallelTests::Tasks.rails_env).to eq("test")
     end
   end