diff --git a/configure.ac b/configure.ac
index be06d94b..bca7bbf2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -74,9 +74,9 @@ LIBQGPGME_LT_REVISION=0
 GPGME_CONFIG_API_VERSION=1
 ##############################################
 
-NEED_GPG_ERROR_VERSION=1.17
+NEED_GPG_ERROR_VERSION=1.24
 NEED_LIBASSUAN_API=2
-NEED_LIBASSUAN_VERSION=2.0.2
+NEED_LIBASSUAN_VERSION=2.4.2
 
 
 PACKAGE=$PACKAGE_NAME
diff --git a/src/util.h b/src/util.h
index fd22d754..b4043ed1 100644
--- a/src/util.h
+++ b/src/util.h
@@ -45,10 +45,6 @@
 
 #define DIM(v) (sizeof(v)/sizeof((v)[0]))
 
-#if GPG_ERROR_VERSION_NUMBER < 0x011500 /* 1.21 */
-# define GPG_ERR_FALSE 256
-#endif
-
 #if GPG_ERROR_VERSION_NUMBER < 0x011900 /* 1.25 */
 # define GPG_ERR_ENGINE_TOO_OLD 300
 # define GPG_ERR_TOO_OLD        308