diff --git a/packages/transcription/README.md b/packages/transcription/README.md
index 245ffa1ee311..53d291091698 100644
--- a/packages/transcription/README.md
+++ b/packages/transcription/README.md
@@ -17,8 +17,12 @@ Provide a common API to many transcription backend, currently :
 And at least one of the following transcription backend:
 - Python :
   - `openai-whisper`
-  - `whisper-ctranslate2`
-  - `whisper-timestamped`
+  - `whisper-ctranslate2>=0.4.3`
+  - `whisper-timestamped>=1.15.4`
+
+And to run the transcript evaluation tests :
+- Python
+  - `jiwer>=3.04`
 
 ## Usage
 
diff --git a/packages/transcription/src/transcript/transcript-file-evaluator.ts b/packages/transcription/src/transcript/transcript-file-evaluator.ts
index 1262cddaf615..bf41d1e046be 100644
--- a/packages/transcription/src/transcript/transcript-file-evaluator.ts
+++ b/packages/transcription/src/transcript/transcript-file-evaluator.ts
@@ -48,15 +48,9 @@ export class TranscriptFileEvaluator {
    * CER: Character Error Rate
    */
   async cer () {
-    // @see https://github.com/jitsi/jiwer/issues/87
-    let result = {
-      stdout: undefined
-    }
-    try {
-      result = await $`jiwer ${this.buildArgs('--cer')}`
-    } catch {}
+    const { stdout: cer } = await $`jiwer ${this.buildArgs('--cer', '-g')}`
 
-    return result.stdout ? Number(result.stdout) : undefined
+    return cer
   }
 
   async alignement () {