diff --git a/configure.ac b/configure.ac
index 82a2e15cc..9657bf288 100644
--- a/configure.ac
+++ b/configure.ac
@@ -46,7 +46,7 @@ NEED_LIBGCRYPT_API=1
 NEED_LIBGCRYPT_VERSION=1.5.0
 
 NEED_LIBASSUAN_API=2
-NEED_LIBASSUAN_VERSION=2.0.3
+NEED_LIBASSUAN_VERSION=2.1.0
 
 NEED_KSBA_API=1
 NEED_KSBA_VERSION=1.2.0