diff --git a/CHANGELOG.md b/CHANGELOG.md
index c12cad1..a059057 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Change Log
 
+## [12.0.1](https://github.com/ISibboI/evalexpr/compare/12.0.0...12.0.1) - 2024-10-25
+
+### Fixed
+
+ * Fixed the `math_consts_context!` macro that was broken by in 12.0.0 (#173)
+
+### Contributors
+
+My warmhearted thanks goes to:
+
+ * [jeffrey182](https://github.com/jeffrey182)
+
 ## [12.0.0](https://github.com/ISibboI/evalexpr/compare/11.3.1...12.0.0) - 2024-10-17
 
 ### Changed
diff --git a/Cargo.lock b/Cargo.lock
index d010031..84849b5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -62,9 +62,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.160"
+version = "0.2.161"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0b21006cd1874ae9e650973c565615676dc4a274c965bb0a73796dac838ce4f"
+checksum = "8e9489c2807c139ffd9c1794f4af0ebe86a828db53ecdc7fea2111d0fed085d1"
 
 [[package]]
 name = "memchr"
@@ -83,9 +83,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.88"
+version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c3a7fc5db1e57d5a779a352c8cdb57b29aa4c40cc69c3a68a7fedc815fbf2f9"
+checksum = "f139b0662de085916d1fb67d2b4169d1addddda1919e696f3252b740b629986e"
 dependencies = [
  "unicode-ident",
 ]
@@ -140,9 +140,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.11.0"
+version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38200e5ee88914975b69f657f0801b6f6dccafd44fd9326302a4aaeecfacb1d8"
+checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -181,18 +181,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.210"
+version = "1.0.213"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8e3592472072e6e22e0a54d5904d9febf8508f65fb8552499a1abc7d1078c3a"
+checksum = "3ea7893ff5e2466df8d720bb615088341b295f849602c6956047f8f80f0e9bc1"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.210"
+version = "1.0.213"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "243902eda00fad750862fc144cea25caca5e20d615af0a81bee94ca738f1df1f"
+checksum = "7e85ad2009c50b58e87caa8cd6dac16bdf511bbfb7af6c33df902396aa480fa5"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -201,9 +201,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.79"
+version = "2.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89132cd0bf050864e1d38dc3bbc07a0eb8e7530af26344d3d2bbbef83499f590"
+checksum = "5023162dfcd14ef8f32034d8bcd4cc5ddc61ef7a247c024a33e24e1f24d21b56"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 707bf7c..ddae561 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,8 +23,8 @@ name = "evalexpr"
 path = "src/lib.rs"
 
 [dependencies]
-regex = { version = "1.11.0", optional = true }
-serde = { version = "1.0.210", features = ["derive"], optional = true }
+regex = { version = "1.11.1", optional = true }
+serde = { version = "1.0.213", features = ["derive"], optional = true }
 rand = { version = "0.8.5", optional = true }
 
 [features]
diff --git a/src/context/mod.rs b/src/context/mod.rs
index dea9837..c135b5e 100644
--- a/src/context/mod.rs
+++ b/src/context/mod.rs
@@ -419,12 +419,12 @@ macro_rules! context_map {
     }};
     // add an integer value, and chain the eventual error with the ones in the next values
     ( ($ctx:expr) $k:expr => int $v:expr , $($tt:tt)*) => {{
-        $crate::ContextWithMutableVariables::set_value($ctx, $k.into(), Value::from_int($v.into()))
+        $crate::ContextWithMutableVariables::set_value($ctx, $k.into(), $crate::Value::from_int($v.into()))
             .and($crate::context_map!(($ctx) $($tt)*))
     }};
     // add a float value, and chain the eventual error with the ones in the next values
     ( ($ctx:expr) $k:expr => float $v:expr , $($tt:tt)*) => {{
-        $crate::ContextWithMutableVariables::set_value($ctx, $k.into(), Value::from_float($v.into()))
+        $crate::ContextWithMutableVariables::set_value($ctx, $k.into(), $crate::Value::from_float($v.into()))
             .and($crate::context_map!(($ctx) $($tt)*))
     }};
     // add a value, and chain the eventual error with the ones in the next values
diff --git a/src/context/predefined/mod.rs b/src/context/predefined/mod.rs
index ad8e785..3d15e5d 100644
--- a/src/context/predefined/mod.rs
+++ b/src/context/predefined/mod.rs
@@ -28,11 +28,28 @@ macro_rules! math_consts_context {
         )
     };
     ($($name:ident),*) => {{
-        use $crate::ContextWithMutableVariables;
         $crate::context_map! {
             $(
-                stringify!($name) => core::f64::consts::$name,
+                stringify!($name) => float core::f64::consts::$name,
             )*
         }
     }};
 }
+
+#[cfg(test)]
+mod tests {
+
+    #[test]
+    fn math_consts_context() {
+        let context: crate::HashMapContext = math_consts_context!().unwrap();
+
+        {
+            use crate::{Context, Value};
+
+            assert_eq!(
+                context.get_value("PI"),
+                Some(&Value::Float(core::f64::consts::PI))
+            );
+        }
+    }
+}