diff --git a/requirements.txt b/requirements.txt
index 5e2958b..006a9bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,9 +11,9 @@ elasticsearch==5.3.0
 factory-boy==3.1.0  # https://github.com/FactoryBoy/factory_boy
 lxml==4.6.5
 MarkupSafe==1.1.1
-matplotlib==3.0.1
+matplotlib==3.3.4
 nltk==3.5
-numpy==1.20.3
+numpy==1.21.6
 pandas==1.1.5
 Pillow==9.1.0
 requests==2.19.1