diff --git a/requirements.txt b/requirements.txt
index 64c91392..5944dac3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ attrs==23.1.0
     #   referencing
 backcall==0.2.0
     # via ipython
-black[jupyter]==23.10.0
+black[jupyter]==26.3.1
     # via -r requirements.in
 build==1.0.3
     # via pip-tools
@@ -28,7 +28,7 @@ distlib==0.3.7
     # via virtualenv
 executing==2.0.0
     # via stack-data
-filelock==3.12.4
+filelock==3.20.3
     # via virtualenv
 identify==2.5.30
     # via pre-commit
@@ -48,14 +48,15 @@ mypy-extensions==1.0.0
     # via black
 nodeenv==1.8.0
     # via pre-commit
-packaging==23.2
+packaging==26.3
     # via
     #   black
     #   build
     #   pytest
+    #   wheel
 parso==0.8.3
     # via jedi
-pathspec==0.11.2
+pathspec==1.1.1
     # via black
 pexpect==4.8.0
     # via ipython
@@ -67,7 +68,7 @@ platformdirs==3.11.0
     # via
     #   black
     #   virtualenv
-pluggy==1.3.0
+pluggy==1.6.0
     # via pytest
 pre-commit==3.5.0
     # via -r requirements.in
@@ -78,15 +79,19 @@ ptyprocess==0.7.0
 pure-eval==0.2.2
     # via stack-data
 pygments==2.16.1
-    # via ipython
+    # via
+    #   ipython
+    #   pytest
 pyproject-hooks==1.0.0
     # via build
 pystac[validation]==1.8.4
     # via -r requirements.in
-pytest==7.4.2
+pytest==9.0.3
     # via -r requirements.in
 python-dateutil==2.8.2
     # via pystac
+pytokens==0.4.1
+    # via black
 pyyaml==6.0.1
     # via pre-commit
 referencing==0.30.2
@@ -111,11 +116,11 @@ traitlets==5.11.2
     # via
     #   ipython
     #   matplotlib-inline
-virtualenv==20.26.6
+virtualenv==20.36.1
     # via pre-commit
 wcwidth==0.2.8
     # via prompt-toolkit
-wheel==0.41.2
+wheel==0.46.2
     # via pip-tools
 
 # The following packages are considered to be unsafe in a requirements file: