diff --git a/src/liblzma/api/lzma/version.h b/src/liblzma/api/lzma/version.h
index 9883242..6503a0c 100644
--- a/src/liblzma/api/lzma/version.h
+++ b/src/liblzma/api/lzma/version.h
@@ -23,7 +23,7 @@
 #define LZMA_VERSION_MINOR 5
 
 /** \brief Patch version number of the liblzma release. */
-#define LZMA_VERSION_PATCH 0
+#define LZMA_VERSION_PATCH 1
 
 /**
  * \brief Version stability marker
diff --git a/src/liblzma/liblzma_generic.map b/src/liblzma/liblzma_generic.map
index b251d36..670e90c 100644
--- a/src/liblzma/liblzma_generic.map
+++ b/src/liblzma/liblzma_generic.map
@@ -120,7 +120,7 @@
 	lzma_str_to_filters;
 } XZ_5.2;
 
-XZ_5.5.0alpha {
+XZ_5.5.1alpha {
 global:
 	lzma_mt_block_size;
 } XZ_5.4;
diff --git a/src/liblzma/liblzma_linux.map b/src/liblzma/liblzma_linux.map
index 25b3938..37cb835 100644
--- a/src/liblzma/liblzma_linux.map
+++ b/src/liblzma/liblzma_linux.map
@@ -135,7 +135,7 @@
 	lzma_str_to_filters;
 } XZ_5.2;
 
-XZ_5.5.0alpha {
+XZ_5.5.1alpha {
 global:
 	lzma_mt_block_size;
 } XZ_5.4;