diff --git a/Makefile b/Makefile
index 3e5e28d..aadb129 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,8 @@ DATA = snowflake--1.0.sql \
 	   snowflake--2.2--2.3.sql \
 	   snowflake--2.3.sql \
 	   snowflake--2.3--2.4.sql \
-	   snowflake--2.4--2.5.0.sql
+	   snowflake--2.4--2.5.0.sql \
+	   snowflake--2.5.0--2.6.0.sql
 PGFILEDESC = "snowflake - snowflake style IDs for PostgreSQL"
 
 REGRESS = conversion maxvalue repair
diff --git a/snowflake--2.5.0--2.6.0.sql b/snowflake--2.5.0--2.6.0.sql
new file mode 100644
index 0000000..40dcbc7
--- /dev/null
+++ b/snowflake--2.5.0--2.6.0.sql
@@ -0,0 +1,4 @@
+/* snowflake--2.5.0--2.6.0.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION snowflake UPDATE TO '2.6.0'" to load this file. \quit
diff --git a/snowflake.control b/snowflake.control
index 238706a..e08d9ce 100644
--- a/snowflake.control
+++ b/snowflake.control
@@ -1,6 +1,6 @@
 # snowflake extension
 comment = 'Snowflake style IDs for PostgreSQL'
-default_version = '2.5.0'
+default_version = '2.6.0'
 module_pathname = '$libdir/snowflake'
 relocatable = false
 schema = snowflake