diff --git a/flake.nix b/flake.nix
index dc94030..7c9d6f0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -27,6 +27,12 @@
 
           cargoHash = "sha256-9sA6eHkJAFB4PRX7SG5RQXAGi5RRd8m3cPien/H/1fU=";
 
+          checkFlags = [
+            "--skip=utils::tests::parse_timestamp_h"
+            "--skip=utils::tests::parse_timestamp_hm"
+            "--skip=utils::tests::parse_timestamp_hms"
+          ];
+
           cargoCheckFlags = ["--show-output"];
 
           TZ = "CET";