diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index de54ded4063a..3fc35213c49d 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -454,8 +454,8 @@ rec {
       "sha256-1zg5Vw+V+bpp5FxTw0CSfxSN7JNVBwY4I8uDFhEJL3w=";
 
   mypy-boto3-ecr =
-    buildMypyBoto3Package "ecr" "1.38.0"
-      "sha256-JPXmkpdWjQSVG8Z7gH385dRy/3HUraLxDLdmO/mqZU4=";
+    buildMypyBoto3Package "ecr" "1.38.6"
+      "sha256-CTIvlIYRlak6FnjhbyyShNGtYbRk45/ESXEKIoR7q/I=";
 
   mypy-boto3-ecr-public =
     buildMypyBoto3Package "ecr-public" "1.38.0"