diff --git a/requirements.txt b/requirements.txt
index e8aad68..742cc69 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -48,7 +48,7 @@ ptyprocess==0.6.0
 pyasn1==0.4.5
 pybtex==0.23.0
 pycparser==2.19
-Pygments==2.3.1
+Pygments==2.15.0
 PyNaCl==1.3.0
 pyrsistent==0.14.11
 python-dateutil==2.8.1