diff --git a/backend/classifier/requirements.txt b/backend/classifier/requirements.txt
index 73f1190..06310e0 100644
--- a/backend/classifier/requirements.txt
+++ b/backend/classifier/requirements.txt
@@ -8,4 +8,5 @@ pandas>=2.3.3
 matplotlib>=3.10.7
 kaggle>=1.7.4.5
 spacy
-https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-3.7.0/en_core_web_sm-3.7.0.tar.gz#egg=en_core_web_sm
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+https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-3.7.0/en_core_web_sm-3.7.0.tar.gz#egg=en_core_web_sm
+urllib3>=2.6.0 # not directly required, pinned by Snyk to avoid a vulnerability
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