diff --git a/pkgs/development/libraries/aws-c-common/default.nix b/pkgs/development/libraries/aws-c-common/default.nix
index cd2a6bf02d9a..ead22a8c9db7 100644
--- a/pkgs/development/libraries/aws-c-common/default.nix
+++ b/pkgs/development/libraries/aws-c-common/default.nix
@@ -7,13 +7,13 @@
 
 stdenv.mkDerivation rec {
   pname = "aws-c-common";
-  version = "0.8.2";
+  version = "0.8.4";
 
   src = fetchFromGitHub {
     owner = "awslabs";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-qjNUrlTayt66TERnWj5apNgdtz0rDudKIk7LWXrfApw=";
+    sha256 = "sha256-8RKx3OPb53hCquFcT+AbtX+LDNEvzLHuqtkbvXewqRs=";
   };
 
   nativeBuildInputs = [ cmake ];
diff --git a/pkgs/development/libraries/aws-c-io/default.nix b/pkgs/development/libraries/aws-c-io/default.nix
index 6199b50a530a..072c180765c0 100644
--- a/pkgs/development/libraries/aws-c-io/default.nix
+++ b/pkgs/development/libraries/aws-c-io/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "aws-c-io";
-  version = "0.13.3";
+  version = "0.13.5";
 
   src = fetchFromGitHub {
     owner = "awslabs";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-lrSAWw5T4RAbk0JaNi5Vmh7qcjxOS8a1jdFMpaItrhI=";
+    sha256 = "sha256-7qNJMIG+bshtapm7uj+8ECSN9j0Bd1famSXp+i+67Uw=";
   };
 
   nativeBuildInputs = [ cmake ];