diff --git a/src/whisper_ctx.rs b/src/whisper_ctx.rs
index f5e9f33..7c3ee96 100644
--- a/src/whisper_ctx.rs
+++ b/src/whisper_ctx.rs
@@ -453,3 +453,9 @@ impl Drop for WhisperContext {
         unsafe { whisper_rs_sys::whisper_free(self.ctx) };
     }
 }
+
+// following implementations are safe
+// see https://github.com/ggerganov/whisper.cpp/issues/32#issuecomment-1272790388
+// concurrent usage is prevented by &mut self on methods that modify the struct
+unsafe impl Send for WhisperContext {}
+unsafe impl Sync for WhisperContext {}
diff --git a/src/whisper_params.rs b/src/whisper_params.rs
index fb06b4d..7d36c78 100644
--- a/src/whisper_params.rs
+++ b/src/whisper_params.rs
@@ -112,3 +112,9 @@ impl<'a> FullParams<'a> {
         self.fp.language = language.as_ptr() as *const _;
     }
 }
+
+// following implementations are safe
+// see https://github.com/ggerganov/whisper.cpp/issues/32#issuecomment-1272790388
+// concurrent usage is prevented by &mut self on methods that modify the struct
+unsafe impl<'a> Send for FullParams<'a> {}
+unsafe impl<'a> Sync for FullParams<'a> {}