diff --git a/pkgs/development/libraries/gsasl/default.nix b/pkgs/development/libraries/gsasl/default.nix
index 5dcc24cc8bc2..2f990a3cbe64 100644
--- a/pkgs/development/libraries/gsasl/default.nix
+++ b/pkgs/development/libraries/gsasl/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "gsasl";
-  version = "1.10.0";
+  version = "2.0.1";
 
   src = fetchurl {
     url = "mirror://gnu/gsasl/${pname}-${version}.tar.gz";
-    sha256 = "sha256-hby9juYJWt54cCY6KOvLiDL1Qepzk5dUlJJgFcB1aNM=";
+    sha256 = "sha256-Mix1QgCIQbzYukrgkzsiAhHRkKe1anDdYfZVbezAG3o=";
   };
 
   buildInputs = [ libidn libkrb5 ];
diff --git a/pkgs/development/libraries/vmime/default.nix b/pkgs/development/libraries/vmime/default.nix
index 3f33df66339e..c2b585965b05 100644
--- a/pkgs/development/libraries/vmime/default.nix
+++ b/pkgs/development/libraries/vmime/default.nix
@@ -6,12 +6,14 @@
 
 stdenv.mkDerivation rec {
   pname = "vmime";
-  version = "0.9.2";
+  # XXX: using unstable rev for now to comply with the removal of
+  # deprecated symbols in the latest release of gsasl
+  version = "unstable-2022-03-26";
   src = fetchFromGitHub {
     owner = "kisli";
     repo = "vmime";
-    rev = "v${version}";
-    sha256 = "1304n50ny2av8bagjpgz55ag0nd7m313akm9bb73abjn6h5nzacv";
+    rev = "fc69321d5304c73be685c890f3b30528aadcfeaf";
+    sha256 = "sha256-DUcGQcT7hp5Rs2Z5C8wo+3BYwWqED0KrF3h3vgLiiow=";
   };
 
   buildInputs = [ gsasl gnutls zlib libtasn1 libgcrypt gtk3 ];