diff --git a/ChangeLog b/ChangeLog
index 127aa62..c8171cb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,4 @@
-2024.148:
+2024.148: 3.1.2
 	- Update yyjson to v0.9.0.
 	- Simplify mstl3_addmsr_recordptr() a bit.
 
diff --git a/libmseed.h b/libmseed.h
index 7d5eda3..c0e1f92 100644
--- a/libmseed.h
+++ b/libmseed.h
@@ -28,8 +28,8 @@
 extern "C" {
 #endif
 
-#define LIBMSEED_VERSION "3.1.1"     //!< Library version
-#define LIBMSEED_RELEASE "2024.024"  //!< Library release date
+#define LIBMSEED_VERSION "3.1.2"     //!< Library version
+#define LIBMSEED_RELEASE "2024.148"  //!< Library release date
 
 /** @defgroup io-functions File and URL I/O */
 /** @defgroup miniseed-record Record Handling */