diff --git a/Cargo.toml b/Cargo.toml
index fa9ef428b..3ba01de0a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -59,9 +59,16 @@ sval_ref = { version = "2.1", optional = true, default-features = false }
 value-bag = { version = "1.4", optional = true, default-features = false }
 
 [dev-dependencies]
-rustversion = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_test = "1.0"
 sval = { version = "2.1" }
 sval_derive = { version = "2.1" }
 value-bag = { version = "1.4", features = ["test"] }
+
+# NOTE: log doesn't actually depent on this crate. However our dependencies,
+# serde and sval, dependent on version 1.0 of the crate, which has problem fixed
+# in 1.0.60, specifically in the following commit
+# https://github.com/dtolnay/proc-macro2/commit/e31d61910049e097afdd3d27c37786309082bdcb.
+# By defining the crate as direct dependency we can increase it's minimal
+# version making the minimal (crate) version CI happy.
+proc-macro2 = { version = "1.0.63", default-features = false }
diff --git a/tests/macros.rs b/tests/macros.rs
index 08a09b7d7..228f1f5d6 100644
--- a/tests/macros.rs
+++ b/tests/macros.rs
@@ -157,49 +157,45 @@ fn kv_expr_context() {
 
 #[test]
 fn implicit_named_args() {
-    #[rustversion::since(1.58)]
-    fn _check() {
-        let world = "world";
+    let world = "world";
 
-        for lvl in log::Level::iter() {
-            log!(lvl, "hello {world}");
-            log!(lvl, "hello {world}",);
+    for lvl in log::Level::iter() {
+        log!(lvl, "hello {world}");
+        log!(lvl, "hello {world}",);
 
-            log!(target: "my_target", lvl, "hello {world}");
-            log!(target: "my_target", lvl, "hello {world}",);
+        log!(target: "my_target", lvl, "hello {world}");
+        log!(target: "my_target", lvl, "hello {world}",);
 
-            log!(lvl, "hello {world}");
-            log!(lvl, "hello {world}",);
-        }
+        log!(lvl, "hello {world}");
+        log!(lvl, "hello {world}",);
+    }
 
-        all_log_macros!("hello {world}");
-        all_log_macros!("hello {world}",);
+    all_log_macros!("hello {world}");
+    all_log_macros!("hello {world}",);
 
-        all_log_macros!(target: "my_target", "hello {world}");
-        all_log_macros!(target: "my_target", "hello {world}",);
+    all_log_macros!(target: "my_target", "hello {world}");
+    all_log_macros!(target: "my_target", "hello {world}",);
 
-        all_log_macros!(target = "my_target"; "hello {world}");
-        all_log_macros!(target = "my_target"; "hello {world}",);
-    }
+    #[cfg(feature = "kv_unstable")]
+    all_log_macros!(target = "my_target"; "hello {world}");
+    #[cfg(feature = "kv_unstable")]
+    all_log_macros!(target = "my_target"; "hello {world}",);
 }
 
 #[test]
 #[cfg(feature = "kv_unstable")]
 fn kv_implicit_named_args() {
-    #[rustversion::since(1.58)]
-    fn _check() {
-        let world = "world";
+    let world = "world";
 
-        for lvl in log::Level::iter() {
-            log!(target: "my_target", lvl, cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
-
-            log!(lvl, cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
-        }
+    for lvl in log::Level::iter() {
+        log!(target: "my_target", lvl, cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
 
-        all_log_macros!(target: "my_target", cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
-        all_log_macros!(target = "my_target", cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
-        all_log_macros!(cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
+        log!(lvl, cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
     }
+
+    all_log_macros!(target: "my_target", cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
+    all_log_macros!(target = "my_target", cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
+    all_log_macros!(cat_1 = "chashu", cat_2 = "nori", cat_count = 2; "hello {world}");
 }
 
 #[test]