diff --git a/lib/sib-api-v3-sdk/models/create_sms_campaign.rb b/lib/sib-api-v3-sdk/models/create_sms_campaign.rb
index 58e917b..715480b 100644
--- a/lib/sib-api-v3-sdk/models/create_sms_campaign.rb
+++ b/lib/sib-api-v3-sdk/models/create_sms_campaign.rb
@@ -98,8 +98,8 @@ def list_invalid_properties
         invalid_properties.push("invalid value for 'sender', the character length must be smaller than or equal to 11.")
       end
 
-      if !@scheduled_at.nil? && @scheduled_at !~ Regexp.new(/^([1-9]\\d{3}-\\d{2}-\\d{2} [0-2]\\d:[0-5]\\d:[0-5]\\d)?$/)
-        invalid_properties.push("invalid value for 'scheduled_at', must conform to the pattern /^([1-9]\\d{3}-\\d{2}-\\d{2} [0-2]\\d:[0-5]\\d:[0-5]\\d)?$/.")
+      if !@scheduled_at.nil? && @scheduled_at !~ Regexp.new(/^([1-9]\d{3}-\d{2}-\d{2} [0-2]\d:[0-5]\d:[0-5]\d)?$/)
+        invalid_properties.push("invalid value for 'scheduled_at', must conform to the pattern /^([1-9]\d{3}-\d{2}-\d{2} [0-2]\d:[0-5]\d:[0-5]\d)?$/.")
       end
 
       return invalid_properties
@@ -111,7 +111,7 @@ def valid?
       return false if @name.nil?
       return false if @sender.nil?
       return false if @sender.to_s.length > 11
-      return false if !@scheduled_at.nil? && @scheduled_at !~ Regexp.new(/^([1-9]\\d{3}-\\d{2}-\\d{2} [0-2]\\d:[0-5]\\d:[0-5]\\d)?$/)
+      return false if !@scheduled_at.nil? && @scheduled_at !~ Regexp.new(/^([1-9]\d{3}-\d{2}-\d{2} [0-2]\d:[0-5]\d:[0-5]\d)?$/)
       return true
     end
 
@@ -133,8 +133,8 @@ def sender=(sender)
     # @param [Object] scheduled_at Value to be assigned
     def scheduled_at=(scheduled_at)
 
-      if !scheduled_at.nil? && scheduled_at !~ Regexp.new(/^([1-9]\\d{3}-\\d{2}-\\d{2} [0-2]\\d:[0-5]\\d:[0-5]\\d)?$/)
-        fail ArgumentError, "invalid value for 'scheduled_at', must conform to the pattern /^([1-9]\\d{3}-\\d{2}-\\d{2} [0-2]\\d:[0-5]\\d:[0-5]\\d)?$/."
+      if !scheduled_at.nil? && scheduled_at !~ Regexp.new(/^([1-9]\d{3}-\d{2}-\d{2} [0-2]\d:[0-5]\d:[0-5]\d)?$/)
+        fail ArgumentError, "invalid value for 'scheduled_at', must conform to the pattern /^([1-9]\d{3}-\d{2}-\d{2} [0-2]\d:[0-5]\d:[0-5]\d)?$/."
       end
 
       @scheduled_at = scheduled_at
diff --git a/lib/sib-api-v3-sdk/models/get_campaign_overview.rb b/lib/sib-api-v3-sdk/models/get_campaign_overview.rb
index a40b4e2..ecd7263 100644
--- a/lib/sib-api-v3-sdk/models/get_campaign_overview.rb
+++ b/lib/sib-api-v3-sdk/models/get_campaign_overview.rb
@@ -137,8 +137,8 @@ def list_invalid_properties
         invalid_properties.push("invalid value for 'status', status cannot be nil.")
       end
 
-      if !@scheduled_at.nil? && @scheduled_at !~ Regexp.new(/^([1-9]\\d{3}-\\d{2}-\\d{2} [0-2]\\d:[0-5]\\d:[0-5]\\d)?$/)
-        invalid_properties.push("invalid value for 'scheduled_at', must conform to the pattern /^([1-9]\\d{3}-\\d{2}-\\d{2} [0-2]\\d:[0-5]\\d:[0-5]\\d)?$/.")
+      if !@scheduled_at.nil? && @scheduled_at !~ Regexp.new(/^([1-9]\d{3}-\d{2}-\d{2} [0-2]\d:[0-5]\d:[0-5]\d)?$/)
+        invalid_properties.push("invalid value for 'scheduled_at', must conform to the pattern /^([1-9]\d{3}-\d{2}-\d{2} [0-2]\d:[0-5]\d:[0-5]\d)?$/.")
       end
 
       return invalid_properties