diff --git a/manifests/init.pp b/manifests/init.pp
index cd483765..18ea62f2 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -229,8 +229,6 @@
 #   Defaults to $::os_service_default
 #
 # DEPREACTED PARAMETERS
-#  [*img_dir*]
-#   Defaults to undef
 #  [*panko_available*]
 #   Defaults to undef
 #  [*keystone_v2*]
@@ -370,8 +368,7 @@ class tempest(
   $disable_ssl_validation             = undef,
   $manage_tests_packages              = false,
   # scenario options
-  # TODO(tkajinam) Update the default value when we remove img_dir parameter
-  $img_file                           = undef,
+  $img_file                           = '/var/lib/tempest/cirros-0.4.0-x86_64-disk.img',
   # designate options
   $designate_nameservers              = undef,
   # ironic options
@@ -386,7 +383,6 @@ class tempest(
   $load_balancer_global_observer_role = $::os_service_default,
   $load_balancer_test_with_noop       = $::os_service_default,
   # DEPRECATED PARAMETERS
-  $img_dir                            = undef,
   $panko_available                    = undef,
   $keystone_v2                        = undef,
   $change_password_available          = undef,
@@ -401,21 +397,6 @@ class tempest(
     $tempest_roles_real = $::os_service_default
   }
 
-  if $img_dir != undef {
-    warning('The tempest::img_dir parameter is deperecated. Set full path in img_file parameter instead')
-    if $img_file == undef {
-      $img_file_real = "${img_dir}/cirros-0.4.0-x86_64-disk.img"
-    } else {
-      $img_file_real = "${img_dir}/${img_file}"
-    }
-  } else {
-    if $img_file == undef {
-      $img_file_real = '/var/lib/tempest/cirros-0.4.0-x86_64-disk.img'
-    } else {
-      $img_file_real = $img_file
-    }
-  }
-
   if $panko_available != undef {
     warning('The panko_available parameter has been deprecated and has no effect')
   }
@@ -615,7 +596,7 @@ class tempest(
     'enforce_scope/nova':                              value => $nova_enforce_scope;
     'whitebox/db_uri':                                 value => $whitebox_db_uri;
     'cli/cli_dir':                                     value => $cli_dir;
-    'scenario/img_file':                               value => $img_file_real;
+    'scenario/img_file':                               value => $img_file;
     'service_broker/run_service_broker_tests':         value => $run_service_broker_tests;
     'dns/nameservers':                                 value => $designate_nameservers;
     'compute-feature-enabled/attach_encrypted_volume': value => $attach_encrypted_volume;
diff --git a/releasenotes/notes/remove-img_dir-1ca314f67b227268.yaml b/releasenotes/notes/remove-img_dir-1ca314f67b227268.yaml
new file mode 100644
index 00000000..98bde3cc
--- /dev/null
+++ b/releasenotes/notes/remove-img_dir-1ca314f67b227268.yaml
@@ -0,0 +1,4 @@
+---
+upgrade:
+  - |
+    The ``tempest::img_dir`` parameter has been removed.
diff --git a/spec/classes/tempest_init_spec.rb b/spec/classes/tempest_init_spec.rb
index 98a80b68..a600ab9b 100644
--- a/spec/classes/tempest_init_spec.rb
+++ b/spec/classes/tempest_init_spec.rb
@@ -330,7 +330,7 @@ describe 'tempest' do
       end
     end
 
-    context 'with deprecated img_dir parameter and img_file set' do
+    context 'with img_file set' do
       let :params do
         { :image_name     => 'cirros',
           :image_name_alt => 'cirros' ,
@@ -342,31 +342,6 @@ describe 'tempest' do
       end
     end
 
-    context 'with deprecated img_dir parameter set' do
-      let :params do
-        { :image_name     => 'cirros',
-          :image_name_alt => 'cirros',
-          :img_dir        => '/home/stack' }
-      end
-
-      it 'sets image_file based on img_dir' do
-        is_expected.to contain_tempest_config('scenario/img_file').with(:value => '/home/stack/cirros-0.4.0-x86_64-disk.img')
-      end
-    end
-
-    context 'with deprecated img_dir parameter and img_file set' do
-      let :params do
-        { :image_name     => 'cirros',
-          :image_name_alt => 'cirros',
-          :img_dir        => '/home/stack',
-          :img_file       => 'myimage.img' }
-      end
-
-      it 'sets image_file based on img_dir and img_file' do
-        is_expected.to contain_tempest_config('scenario/img_file').with(:value => '/home/stack/myimage.img')
-      end
-    end
-
     context 'install Tempest from package' do
       let :params do
         {:install_from_source => false,