diff --git a/cryptoki/Cargo.toml b/cryptoki/Cargo.toml
index 1fa727d2..aeb03458 100644
--- a/cryptoki/Cargo.toml
+++ b/cryptoki/Cargo.toml
@@ -15,7 +15,6 @@ documentation = "https://docs.rs/crate/cryptoki"
 bitflags = "1.3"
 libloading = "0.7.0"
 log = "0.4.14"
-derivative = "2.2.0"
 psa-crypto = { version = "0.9.0", default-features = false, optional = true }
 cryptoki-sys = { path = "../cryptoki-sys", version = "0.1.4" }
 paste = "1.0.6"
diff --git a/cryptoki/src/context/mod.rs b/cryptoki/src/context/mod.rs
index ae2ddb29..5587a4fb 100644
--- a/cryptoki/src/context/mod.rs
+++ b/cryptoki/src/context/mod.rs
@@ -25,24 +25,29 @@ pub use locking::*;
 
 use crate::error::{Error, Result, Rv};
 
-use derivative::Derivative;
 use log::error;
+use std::fmt;
 use std::mem;
 use std::path::Path;
 use std::ptr;
 use std::sync::Arc;
 
-#[derive(Derivative)]
-#[derivative(Debug)]
 // Implementation of Pkcs11 class that can be enclosed in a single Arc
 pub(crate) struct Pkcs11Impl {
     // Even if this field is never read, it is needed for the pointers in function_list to remain
     // valid.
-    #[derivative(Debug = "ignore")]
     _pkcs11_lib: cryptoki_sys::Pkcs11,
     pub(crate) function_list: cryptoki_sys::_CK_FUNCTION_LIST,
 }
 
+impl fmt::Debug for Pkcs11Impl {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_struct("Pkcs11Impl")
+            .field("function_list", &self.function_list)
+            .finish()
+    }
+}
+
 impl Pkcs11Impl {
     // Private finalize call
     #[inline(always)]