diff --git a/pkgs/development/libraries/arb/default.nix b/pkgs/development/libraries/arb/default.nix
index 97af236af046..393639ea558b 100644
--- a/pkgs/development/libraries/arb/default.nix
+++ b/pkgs/development/libraries/arb/default.nix
@@ -9,13 +9,13 @@
 
 stdenv.mkDerivation rec {
   pname = "arb";
-  version = "2.19.0";
+  version = "2.20.0";
 
   src = fetchFromGitHub {
     owner = "fredrik-johansson";
     repo = pname;
     rev = version;
-    sha256 = "sha256-J/LQVZ8gmssazE7ru89EtvW6cVjaLEHgUHuwjW1nuOE=";
+    sha256 = "sha256-HOIbdkVV7NKowIGhDdn/S8unIRV469OnRHiuiCGaWgk=";
   };
 
   buildInputs = [ mpir gmp mpfr flint ];
diff --git a/pkgs/development/libraries/flint/default.nix b/pkgs/development/libraries/flint/default.nix
index 7f814461f282..e9470986c73a 100644
--- a/pkgs/development/libraries/flint/default.nix
+++ b/pkgs/development/libraries/flint/default.nix
@@ -12,11 +12,11 @@ assert withBlas -> openblas != null && blas.implementation == "openblas" && lapa
 
 stdenv.mkDerivation rec {
   pname = "flint";
-  version = "2.7.1";
+  version = "2.8.0";
 
   src = fetchurl {
     url = "http://www.flintlib.org/flint-${version}.tar.gz";
-    sha256 = "07j8r96kdzp19cy3a5yvpjxf90mkd6103yr2n42qmpv7mgcjyvhq";
+    sha256 = "sha256-WEI1zcOdd52ZIOrvFv4ITzwm/+7qADo//2SiCg8zRJ4=";
   };
 
   buildInputs = [