diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 8f0666a7..50abe6da 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -57,11 +57,6 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Use Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: '20.x'
-
       - name: Install apt packages (Linux with python 3.12 only)
         if: runner.os == 'Linux' && matrix.python-version == '3.12'
         run: |
diff --git a/poetry.lock b/poetry.lock
index 7443c57b..8ca03871 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -2037,13 +2037,13 @@ reference = "pypi-public"
 
 [[package]]
 name = "prefig"
-version = "0.2.9"
+version = "0.2.8"
 description = "An authoring system for mathematical diagrams"
 optional = true
 python-versions = ">=3.8.5,<4.0.0"
 files = [
-    {file = "prefig-0.2.9-py3-none-any.whl", hash = "sha256:b40aa4f63979db88c15796915c9b622a8b05df7bac22611c4b1c022402d721ab"},
-    {file = "prefig-0.2.9.tar.gz", hash = "sha256:ca0b35a1d385e176c2e056ab62d13ec949dfec7bce967035523609b7e814a75a"},
+    {file = "prefig-0.2.8-py3-none-any.whl", hash = "sha256:6ef63cab0e9f6eb49dc52dcdaa78c9728dd7fc22edd1fa75a4b1c7328decd68e"},
+    {file = "prefig-0.2.8.tar.gz", hash = "sha256:3afc8509b975c9062776ca08bf652d448b8c48f25ca8fd404f4d3b9c81db77d1"},
 ]
 
 [package.dependencies]
@@ -2056,6 +2056,7 @@ numpy = [
     {version = ">=1.26,<2.0", markers = "python_version >= \"3.9\" and python_version < \"3.13\""},
     {version = ">=2.1.0,<3.0.0", markers = "python_version == \"3.13\""},
 ]
+psutil = ">=6.0.0,<7.0.0"
 pycairo = {version = ">=1.20,<2.0", optional = true, markers = "extra == \"pycairo\""}
 scipy = [
     {version = ">=1.5,<=1.7", markers = "python_version == \"3.8\""},
@@ -3618,4 +3619,4 @@ prefigure = ["prefig"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8.5"
-content-hash = "ac90882b233279a101fc959d14f9e5f03c1402b719ac49c39ecc5bbe5ab5f26c"
+content-hash = "74c09ab5d6a30aafb5f6fabcc00b5d3c5c44d02d268efccbe6e991009a662de5"
diff --git a/pyproject.toml b/pyproject.toml
index c4d910b6..ca2fde7c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ psutil = "^6"
 plastex = "^3"
 jinja2 = "^3"
 pelican = { extras = ["markdown"], version = "^4.10", optional = true }
-prefig = { extras = ["pycairo"], version = "^0.2.8", optional = true }
+prefig = { extras = ["pycairo"], version = "0.2.8", optional = true }
 
 # Development dependencies
 # ------------------------