diff --git a/conanfile.py b/conanfile.py
index ebd8fcf2950b203f33e0c3ada5181cf0bf4502ac..021f04037e522749b7480f45c3f99eb242ba6de9 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -22,8 +22,7 @@ class CaosdbConan(ConanFile):
     }
     generators = "cmake"
     requires = [
-        ("grpc/1.48.0"),
-        ("zlib/1.3.1")
+        ("grpc/1.48.4"),
     ]
     build_requires = [
         ("boost/1.78.0"),