diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 3235b281096f..8d31df002cd7 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -498,8 +498,8 @@ rec {
       "sha256-bGXPSBRUfkiRc2Isx79953gV2qv2rCE9N+L11CEceug=";
 
   mypy-boto3-emr =
-    buildMypyBoto3Package "emr" "1.38.0"
-      "sha256-EG/qlpfpGaRJJhYPUACHM+TlHSwY+bYpgG5VxBAYTh0=";
+    buildMypyBoto3Package "emr" "1.38.18"
+      "sha256-q/1574BCv6rcHog3kEXBFr0K0FNrqE3nj0JTfCTsC8A=";
 
   mypy-boto3-emr-containers =
     buildMypyBoto3Package "emr-containers" "1.38.0"