diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 625eb5df842..3384afb96df 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3099,13 +3099,13 @@ in {
 
   boto3 = buildPythonPackage rec {
     name = "boto3-${version}";
-    version = "1.4.2";
+    version = "1.4.4";
 
     src = pkgs.fetchFromGitHub {
       owner = "boto";
       repo  = "boto3";
       rev   = version;
-      sha256 = "19hzxqr7ba07b3zg2wsrz6ic3g7pq50rrcp4616flfgny5vw42j3";
+      sha256 = "1zngj38a2dmc02p3ha9crzv9k682f0zgyyfx1bgg8hwwrnggikwl";
     };
 
     propagatedBuildInputs = [ self.botocore self.jmespath self.s3transfer ] ++
@@ -23071,12 +23071,12 @@ in {
   };
 
   s3transfer = buildPythonPackage rec {
-    version = "0.1.9";
+    version = "0.1.10";
     name = "s3transfer-${version}";
 
     src = pkgs.fetchurl {
       url = "mirror://pypi/s/s3transfer/${name}.tar.gz";
-      sha256 = "0m67nhdnp2pd11j8h4bgz63zq0mvn2f205vrxmr3my8m45kpvb8p";
+      sha256 = "1h8g9bknvxflxkpbnxyfxmk8pvgykbbk9ljdvhqh6z4vjc2926ms";
     };
 
     foo = 1;