diff --git a/README.md b/README.md
index b3b8ded6..303a9eea 100644
--- a/README.md
+++ b/README.md
@@ -54,14 +54,16 @@ Options:
     --indentation        Number of spaces to indent                   [number]
 -t, --tables             Space-separated names of tables to import     [array]
 -T, --skipTables         Space-separated names of tables to skip       [array]
---caseModel, --cm        Set case of model names: c|l|o|p|u
+--caseModel, --cm        Set case of model names: c|l|bl|o|p|u|bu
                           c = camelCase
                           l = lower_case
+                          bl = lowercase
                           o = original (default)
                           p = PascalCase
                           u = UPPER_CASE
---caseProp, --cp         Set case of property names: c|l|o|p|u
---caseFile, --cf         Set case of file names: c|l|o|p|u|k
+                          bu = UPPERCASE
+--caseProp, --cp         Set case of property names: c|l|bl|o|p|u|bu
+--caseFile, --cf         Set case of file names: c|l|bl|o|p|u|bu|k
                           k = kebab-case
 --noAlias                Avoid creating alias `as` property in relations
                                                                      [boolean]
diff --git a/src/types.ts b/src/types.ts
index cb3d52a0..c24e00e1 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -112,18 +112,22 @@ export declare type LangOption = "es5" | "es6" | "esm" | "ts";
 
 /** "c" camelCase |
  * "l" lower_case |
+ * "bl" lowercase |
  * "o" original (db) |
  * "p" PascalCase |
- * "u" UPPER_CASE */
-export declare type CaseOption = "c" | "l" | "o" | "p" | "u";
+ * "u" UPPER_CASE |
+ * "bu" UPPERCASE*/
+export declare type CaseOption = "c" | "l" | "o" | "p" | "u" | "bu" | "bl";
 
 /**
  * "c" camelCase |
  * "k" kebab-case |
  * "l" lower_case |
+ * "bl" lowercase |
  * "o" original (db) |
  * "p" PascalCase |
- * "u" UPPER_CASE
+ * "u" UPPER_CASE |
+ * "bu" UPPERCASE
  */
 export declare type CaseFileOption = "k" | CaseOption;
 
@@ -221,12 +225,18 @@ export function recase(opt: CaseOption | CaseFileOption | undefined, val: string
   if (opt === 'l') {
     return _.snakeCase(val);
   }
+  if (opt === 'bl') {
+    return String(val).toLowerCase();
+  }
   if (opt === 'p') {
     return _.upperFirst(_.camelCase(val));
   }
   if (opt === 'u') {
     return _.snakeCase(val).toUpperCase();
   }
+  if (opt === 'bu') {
+    return String(val).toUpperCase();
+  }
   return val;
 }
 
diff --git a/test/types.test.js b/test/types.test.js
index 762ef68e..f3c8c7df 100644
--- a/test/types.test.js
+++ b/test/types.test.js
@@ -12,4 +12,14 @@ describe('sequelize-auto types', function() {
     const recasedString = recase('u', 'related_product');
     expect(recasedString).to.be.equal('RELATED_PRODUCT');
   });
+
+  it('recase UPPERCASE', function() {
+    const recasedString = recase('bu', 'relatedProduct');
+    expect(recasedString).to.be.equal('RELATEDPRODUCT');
+  });
+
+  it('recase lowercase', function() {
+    const recasedString = recase('bl', 'relatedProduct');
+    expect(recasedString).to.be.equal('relatedproduct');
+  });
 });