diff --git a/pyproject.toml b/pyproject.toml
index 3f2f2e45..c46ded96 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ dependencies = [
 "llama-index==0.5.23",
 "PyPDF2==3.0.1",
 "youtube_transcript_api==0.5.0",
-"sentencepiece==0.1.97",
+"sentencepiece==0.1.99",
 "protobuf==3.20.2",
 "python-pptx==0.6.21",
 "langchain==0.0.142",
diff --git a/requirements.txt b/requirements.txt
index ec759509..003a8ddd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ flask==2.2.3
 llama-index==0.5.23
 PyPDF2==3.0.1
 youtube_transcript_api==0.5.0
-sentencepiece==0.1.97
+sentencepiece==0.1.99
 protobuf==3.20.2
 python-pptx==0.6.21
 sentence-transformers==2.2.2
diff --git a/requirements_base.txt b/requirements_base.txt
index e5784ac1..a17cbaf6 100644
--- a/requirements_base.txt
+++ b/requirements_base.txt
@@ -15,7 +15,7 @@ flask==2.2.3
 llama-index==0.5.23
 PyPDF2==3.0.1
 youtube_transcript_api==0.5.0
-sentencepiece==0.1.97
+sentencepiece==0.1.99
 protobuf==3.20.2
 python-pptx==0.6.21
 langchain==0.0.142