diff --git a/pkgs/servers/sql/postgresql/ext/timescaledb.nix b/pkgs/servers/sql/postgresql/ext/timescaledb.nix
index 4c612c8b8e9f..52a3ff1b6824 100644
--- a/pkgs/servers/sql/postgresql/ext/timescaledb.nix
+++ b/pkgs/servers/sql/postgresql/ext/timescaledb.nix
@@ -8,7 +8,7 @@
 
 stdenv.mkDerivation rec {
   pname = "timescaledb";
-  version = "2.9.0";
+  version = "2.9.1";
 
   nativeBuildInputs = [ cmake ];
   buildInputs = [ postgresql openssl libkrb5 ];
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
     owner = "timescale";
     repo = "timescaledb";
     rev = version;
-    sha256 = "sha256-N/syMGr4NUiiP8J3cD7yhJW8nuYsTBSsuFYHdNeb16Y=";
+    sha256 = "sha256-fvVSxDiGZAewyuQ2vZDb0I6tmlDXl6trjZp8+qDBtb8=";
   };
 
   cmakeFlags = [ "-DSEND_TELEMETRY_DEFAULT=OFF" "-DREGRESS_CHECKS=OFF" "-DTAP_CHECKS=OFF" ]