diff --git a/gvsbuild/projects/zlib.py b/gvsbuild/projects/zlib.py
index b3d83f70d..9ace44a75 100644
--- a/gvsbuild/projects/zlib.py
+++ b/gvsbuild/projects/zlib.py
@@ -38,9 +38,9 @@ def __init__(self):
         Project.__init__(
             self,
             "zlib",
-            version="1.2.13",
+            version="1.3",
             archive_url="https://github.com/madler/zlib/releases/download/v{version}/zlib-{version}.tar.xz",
-            hash="d14c38e313afc35a9a8760dadf26042f51ea0f5d154b0630a31da0540107fb98",
+            hash="8a9ba2898e1d0d774eca6ba5b4627a11e5588ba85c8851336eb38de4683050a7",
         )
 
     def build(self):