diff --git a/pyproject.toml b/pyproject.toml
index 8d0fd9b9..8be3bf8d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,21 +29,21 @@ classifiers = [
 ]
 requires-python = ">=3.9,<4.0"
 dependencies = [
-    "blinker>=1.7.0",
-    "docutils>=0.20.1",
-    "feedgenerator>=2.1.0",
-    "jinja2>=3.1.2",
-    "ordered-set>=4.1.0",
-    "pygments>=2.16.1,<2.20.0",
-    "python-dateutil>=2.8.2",
-    "rich>=13.6.0",
-    "unidecode>=1.3.7",
-    "watchfiles>=0.21.0",
+    "blinker==1.7.0",
+    "docutils==0.20.1",
+    "feedgenerator==2.1.0",
+    "jinja2==3.1.2",
+    "ordered-set==4.1.0",
+    "pygments==2.19.2",
+    "python-dateutil==2.9.0",
+    "rich==14.0.0",
+    "unidecode==1.4.0",
+    "watchfiles==1.1.0",
     "tzdata; sys_platform == 'win32'",
 ]
 
 [project.optional-dependencies]
-markdown = ["markdown>=3.1"]
+markdown = ["markdown==3.8.2"]
 
 [project.urls]
 Homepage = "https://getpelican.com"