diff --git a/python/kvikio/_lib/libnvcomp_ll.pyx b/python/kvikio/_lib/libnvcomp_ll.pyx
index 1794d29819..bd5c66bbce 100644
--- a/python/kvikio/_lib/libnvcomp_ll.pyx
+++ b/python/kvikio/_lib/libnvcomp_ll.pyx
@@ -76,7 +76,7 @@ class nvCompBatchAlgorithm(ABC):
         self,
         size_t batch_size,
         size_t max_uncompressed_chunk_bytes,
-    ) -> (nvcompStatus_t, size_t):
+    ) -> tuple[nvcompStatus_t, size_t]:
         """Algorithm-specific implementation."""
         ...
 
@@ -312,7 +312,7 @@ class nvCompBatchAlgorithmLZ4(nvCompBatchAlgorithm):
         self,
         size_t batch_size,
         size_t max_uncompressed_chunk_bytes,
-    ) -> (nvcompStatus_t, size_t):
+    ) -> tuple[nvcompStatus_t, size_t]:
         cdef size_t temp_bytes = 0
 
         err = nvcompBatchedLZ4CompressGetTempSize(
@@ -434,7 +434,7 @@ class nvCompBatchAlgorithmGdeflate(nvCompBatchAlgorithm):
         self,
         size_t batch_size,
         size_t max_uncompressed_chunk_bytes,
-    ) -> (nvcompStatus_t, size_t):
+    ) -> tuple[nvcompStatus_t, size_t]:
         cdef size_t temp_bytes = 0
 
         err = nvcompBatchedGdeflateCompressGetTempSize(
@@ -552,7 +552,7 @@ class nvCompBatchAlgorithmZstd(nvCompBatchAlgorithm):
         self,
         size_t batch_size,
         size_t max_uncompressed_chunk_bytes,
-    ) -> (nvcompStatus_t, size_t):
+    ) -> tuple[nvcompStatus_t, size_t]:
         cdef size_t temp_bytes = 0
 
         err = nvcompBatchedZstdCompressGetTempSize(
@@ -670,7 +670,7 @@ class nvCompBatchAlgorithmSnappy(nvCompBatchAlgorithm):
         self,
         size_t batch_size,
         size_t max_uncompressed_chunk_bytes,
-    ) -> (nvcompStatus_t, size_t):
+    ) -> tuple[nvcompStatus_t, size_t]:
         cdef size_t temp_bytes = 0
 
         err = nvcompBatchedSnappyCompressGetTempSize(
diff --git a/python/kvikio/_lib/nvcomp_cxx_api.pxd b/python/kvikio/_lib/nvcomp_cxx_api.pxd
index 5f8389bc11..34abbde727 100644
--- a/python/kvikio/_lib/nvcomp_cxx_api.pxd
+++ b/python/kvikio/_lib/nvcomp_cxx_api.pxd
@@ -73,7 +73,6 @@ cdef extern from "nvcomp/nvcompManager.hpp" namespace 'nvcomp':
             size_t uncompressed_buffer_size) except +
         nvcompStatus_t* get_status() const
         CompressionConfig(CompressionConfig& other)
-        CompressionConfig& operator=(CompressionConfig&& other) except +
         CompressionConfig& operator=(const CompressionConfig& other) except +
 
     cdef cppclass DecompressionConfig "nvcomp::DecompressionConfig":
@@ -82,7 +81,6 @@ cdef extern from "nvcomp/nvcompManager.hpp" namespace 'nvcomp':
         DecompressionConfig(PinnedPtrPool[nvcompStatus_t]& pool) except +
         nvcompStatus_t* get_status() const
         DecompressionConfig(DecompressionConfig& other)
-        DecompressionConfig& operator=(DecompressionConfig&& other) except +
         DecompressionConfig& operator=(const DecompressionConfig& other) except +
 
     cdef cppclass nvcompManagerBase "nvcomp::nvcompManagerBase":