diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 1dbd868d5a4b..c293d0f85084 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -347,8 +347,8 @@ in
       "sha256-omWYUcr7Aj6r1F1kKAmM32fn9577UeUgqesnIiBIpPQ=";
 
   mypy-boto3-connectcases =
-    buildMypyBoto3Package "connectcases" "1.42.74"
-      "sha256-zTXFt/wFhDaeKqCPiGNpldb16HOfcZ6CP3PlcWwg/LU=";
+    buildMypyBoto3Package "connectcases" "1.42.90"
+      "sha256-zJ8mqzUaYMPA8CYMRKRAt/9QS0h1MmERWlDj8QN4/XU=";
 
   mypy-boto3-connectparticipant =
     buildMypyBoto3Package "connectparticipant" "1.42.3"