diff --git a/CHANGELOG.md b/CHANGELOG.md
index 35a1c1d..2943c73 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -35,6 +35,15 @@
   directory with the CSS files and the content directory with some initial
   content to get the user started
 
+* Added a make target to update the pygments themes
+
+* updated dependencies:
+  * markdown 3.4.3
+  * pygments 2.15.1
+  * pytest 7.3.2
+  * types-markdown 3.4.2.9
+  * build 0.10.0
+
 ## [1.5.0] - 2023-04-16
 
 * moved to pyproject.toml
diff --git a/Makefile b/Makefile
index 5731772..fce9102 100644
--- a/Makefile
+++ b/Makefile
@@ -48,6 +48,11 @@ test-release: $(VENV) build
 release: $(VENV) build
 	$(BIN)/twine upload dist/*
 
+.PHONY: update-pygmentize
+update-pygmentize: $(VENV)
+	$(BIN)/pygmentize -f html -S default > blag/static/code-light.css
+	$(BIN)/pygmentize -f html -S monokai > blag/static/code-dark.css
+
 .PHONY: docs
 docs: $(VENV)
 	$(BIN)/sphinx-build $(DOCS_SRC) $(DOCS_OUT)
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 95c079a..098232f 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,9 +1,9 @@
-build==0.9.0
+build==0.10.0
 sphinx==5.3.0
 twine==4.0.2
 wheel==0.40.0
-pytest==7.3.0
+pytest==7.3.2
 pytest-cov==4.0.0
 flake8==6.0.0
 mypy==1.2.0
-types-markdown==3.4.2.1
+types-markdown==3.4.2.9
diff --git a/requirements.txt b/requirements.txt
index 58367ba..6607ece 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-markdown==3.4.1
+markdown==3.4.3
 feedgenerator==2.0.0
 jinja2==3.1.2
-pygments==2.13.0
+pygments==2.15.1