diff --git a/libraries/liblmdb/CHANGES b/libraries/liblmdb/CHANGES
index fa29c2ab97..6ff5d5f6d9 100644
--- a/libraries/liblmdb/CHANGES
+++ b/libraries/liblmdb/CHANGES
@@ -1,6 +1,6 @@
 LMDB 0.9 Change Log
 
-LMDB 0.9.30 Release (2022/10/19)
+LMDB 0.9.30 Release (2023/02/08)
 	ITS#9806 - LMDB page_split: key threshold depends on page size
 	ITS#9916 - avoid gcc optimization bug on sparc64 linux
 	ITS#9919 - Mark infrequently used functions as cold
diff --git a/libraries/liblmdb/lmdb.h b/libraries/liblmdb/lmdb.h
index 30491cd04f..5f5d80a4ad 100644
--- a/libraries/liblmdb/lmdb.h
+++ b/libraries/liblmdb/lmdb.h
@@ -210,7 +210,7 @@ typedef int mdb_filehandle_t;
 	MDB_VERINT(MDB_VERSION_MAJOR,MDB_VERSION_MINOR,MDB_VERSION_PATCH)
 
 /** The release date of this library version */
-#define MDB_VERSION_DATE	"October 19, 2021"
+#define MDB_VERSION_DATE	"February 8, 2023"
 
 /** A stringifier for the version info */
 #define MDB_VERSTR(a,b,c,d)	"LMDB " #a "." #b "." #c ": (" d ")"
diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 3c1816e371..931517133b 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -6935,7 +6935,7 @@ current:
 						 * Copy end of page, adjusting alignment so
 						 * compiler may copy words instead of bytes.
 						 */
-						off = (PAGEHDRSZ + data->mv_size) & -sizeof(size_t);
+						off = (PAGEHDRSZ + data->mv_size) & -(int)sizeof(size_t);
 						memcpy((size_t *)((char *)np + off),
 							(size_t *)((char *)omp + off), sz - off);
 						sz = PAGEHDRSZ;