diff --git a/CHANGELOG.md b/CHANGELOG.md
index f463db2a7..b8d62fb16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,13 +9,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added support for new sonic-3 languages in `CartesiaTTSService` and
+  `CartesiaHttpTTSService`.
+
 - `EndFrame` and `EndTaskFrame` have an optional `reason` field to indicate why
   the pipeline is being ended.
 
 - `CancelFrame` and `CancelTaskFrame` have an optional `reason` field to
   indicate why the pipeline is being canceled. This can be also specified when
   you cancel a task with `PipelineTask.cancel(reason="cancellation your
-  reason")`.
+reason")`.
 
 ### Fixed
 
diff --git a/src/pipecat/services/cartesia/tts.py b/src/pipecat/services/cartesia/tts.py
index c2185a355..b3fb3f44e 100644
--- a/src/pipecat/services/cartesia/tts.py
+++ b/src/pipecat/services/cartesia/tts.py
@@ -78,20 +78,47 @@ def language_to_cartesia_language(language: Language) -> Optional[str]:
         The corresponding Cartesia language code, or None if not supported.
     """
     BASE_LANGUAGES = {
+        Language.AR: "ar",
+        Language.BG: "bg",
+        Language.BN: "bn",
+        Language.CS: "cs",
+        Language.DA: "da",
         Language.DE: "de",
         Language.EN: "en",
+        Language.EL: "el",
         Language.ES: "es",
+        Language.FI: "fi",
         Language.FR: "fr",
+        Language.GU: "gu",
+        Language.HE: "he",
         Language.HI: "hi",
+        Language.HR: "hr",
+        Language.HU: "hu",
+        Language.ID: "id",
         Language.IT: "it",
         Language.JA: "ja",
+        Language.KA: "ka",
+        Language.KN: "kn",
         Language.KO: "ko",
+        Language.ML: "ml",
+        Language.MR: "mr",
+        Language.MS: "ms",
         Language.NL: "nl",
+        Language.NO: "no",
+        Language.PA: "pa",
         Language.PL: "pl",
         Language.PT: "pt",
+        Language.RO: "ro",
         Language.RU: "ru",
+        Language.SK: "sk",
         Language.SV: "sv",
+        Language.TA: "ta",
+        Language.TE: "te",
+        Language.TH: "th",
+        Language.TL: "tl",
         Language.TR: "tr",
+        Language.UK: "uk",
+        Language.VI: "vi",
         Language.ZH: "zh",
     }