diff --git a/installation/constraints-3.9.txt b/installation/constraints-3.9.txt
index d742502..80fa73b 100644
--- a/installation/constraints-3.9.txt
+++ b/installation/constraints-3.9.txt
@@ -1,26 +1,26 @@
 adjustText==1.3.0
-certifi==2026.2.25
+certifi==2026.4.22
 charset-normalizer==3.4.7
 contourpy==1.3.0
 cycler==0.12.1
 docker==7.1.0
 fonttools==4.60.2
-idna==3.11
+idna==3.13
 importlib_resources==6.5.2
 kiwisolver==1.4.7
 matplotlib==3.9.4
 networkx==3.2.1
 numpy==2.0.2
-packaging==26.1
+packaging==26.2
 pandas==2.3.3
 pillow==11.3.0
 psutil==7.2.2
 pyparsing==3.3.2
 python-dateutil==2.9.0.post0
-pytz==2026.1.post1
+pytz==2026.2
 requests==2.32.5
 scipy==1.13.1
 six==1.17.0
-tzdata==2026.1
+tzdata==2026.2
 urllib3==2.6.3
 zipp==3.23.1