diff --git a/random_id/__pycache__/utils.cpython-37.pyc b/random_id/__pycache__/utils.cpython-37.pyc
index 8d1dea2..4c56d83 100644
Binary files a/random_id/__pycache__/utils.cpython-37.pyc and b/random_id/__pycache__/utils.cpython-37.pyc differ
diff --git a/random_id/utils.py b/random_id/utils.py
index d6978a6..06cf93f 100755
--- a/random_id/utils.py
+++ b/random_id/utils.py
@@ -2,7 +2,11 @@ import random
 import string
 
 ALPHANUMERIC_CHARS = string.ascii_lowercase + string.ascii_uppercase + string.digits
-MAX_STRING_LENGTH = 11
+MIN_STRING_LENGTH = 11
+MAX_STRING_LENGTH = 27
 
-def generate_random_string(chars=ALPHANUMERIC_CHARS,length=MAX_STRING_LENGTH):
+random_string_length = random.randint(MIN_STRING_LENGTH,MAX_STRING_LENGTH)
+
+
+def generate_random_string(chars=ALPHANUMERIC_CHARS,length=random_string_length):
     return "".join(random.choice(chars) for _ in range(length))
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