diff --git a/Cargo.toml b/Cargo.toml
index e6d9eb60..68cc915c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,9 +3,9 @@ members = ["dfdx-core", "dfdx-derives", "dfdx"]
 resolver = "2"
 
 [workspace.dependencies]
-num-traits = { version = "0.2.15", default-features = false }
-safetensors = { version = "0.3.3", default-features = false }
-memmap2 = { version = "0.5", default-features = false }
+num-traits = { version = "0.2.17", default-features = false }
+safetensors = { version = "0.4.0", default-features = false }
+memmap2 = { version = "0.9.0", default-features = false }
 rand = { version = "0.8.5", default-features = false, features = ["std_rng"] }
 rand_distr = { version = "0.4.3", default-features = false }
-libm = "0.2.7"
\ No newline at end of file
+libm = "0.2.8"
\ No newline at end of file
diff --git a/dfdx-core/Cargo.toml b/dfdx-core/Cargo.toml
index a6d67031..f15a4d91 100644
--- a/dfdx-core/Cargo.toml
+++ b/dfdx-core/Cargo.toml
@@ -30,12 +30,12 @@ spin = { version = "0.9.8", default-features = false, features = ["spin_mutex",
 rand = { workspace = true }
 rand_distr = { workspace = true }
 zip = { version = "0.6.6", default-features = false, optional = true }
-cudarc = { version = "0.9.13", default-features = false, optional = true, features = ["driver", "cublas", "nvrtc"] }
+cudarc = { version = "0.9.15", default-features = false, optional = true, features = ["driver", "cublas", "nvrtc"] }
 num-traits = { workspace = true }
 safetensors = { workspace = true, optional = true }
 memmap2 = { workspace = true, optional = true }
 half = { version = "2.3.1", optional = true, features = ["num-traits", "rand_distr"] }
-gemm = { version = "0.15.4", default-features = false, optional = true }
+gemm = { version = "0.16.14", default-features = false, optional = true, features = ["rayon"] }
 rayon = { version = "1.7.0", optional = true }
 libm = { workspace = true }
 
@@ -60,7 +60,7 @@ fast-alloc = ["std"]
 cuda = ["dep:cudarc", "dep:glob"]
 cudnn = ["cuda", "cudarc?/cudnn"]
 
-f16 = ["dep:half", "cudarc?/f16"]
+f16 = ["dep:half", "cudarc?/f16", "gemm?/f16"]
 
 numpy = ["dep:zip", "std"]
 safetensors = ["dep:safetensors", "std", "dep:memmap2"]
diff --git a/dfdx/src/lib.rs b/dfdx/src/lib.rs
index 80bd81aa..cf4be4a0 100644
--- a/dfdx/src/lib.rs
+++ b/dfdx/src/lib.rs
@@ -329,9 +329,9 @@ pub(crate) mod tests {
     }
 
     #[cfg(feature = "f16")]
-    impl AssertClose for half::f16 {
+    impl AssertClose for crate::dtypes::f16 {
         type Elem = Self;
-        const DEFAULT_TOLERANCE: Self::Elem = half::f16::from_f32_const(1e-2);
+        const DEFAULT_TOLERANCE: Self::Elem = crate::dtypes::f16::from_f32_const(1e-2);
         fn get_far_pair(&self, rhs: &Self, tolerance: Self) -> Option<(Self, Self)> {
             if num_traits::Float::abs(self - rhs) > tolerance {
                 Some((*self, *rhs))