diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2d7edb9..e89e94a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## 0.3.0 (unreleased)
 
 - Added support for Postgres 15
+- Dropped support for Postgres 9.6
 
 ## 0.2.7 (2022-07-31)
 
diff --git a/src/ivfflat.h b/src/ivfflat.h
index 43a6a87..a64c28c 100644
--- a/src/ivfflat.h
+++ b/src/ivfflat.h
@@ -14,8 +14,8 @@
 #include "portability/instr_time.h"
 #endif
 
-#if PG_VERSION_NUM < 90600
-#error "Requires PostgreSQL 9.6+"
+#if PG_VERSION_NUM < 100000
+#error "Requires PostgreSQL 10+"
 #endif
 
 /* Support functions */