diff --git a/CMake/fletch-tarballs.cmake b/CMake/fletch-tarballs.cmake
index ccdcec37..a6aeb67e 100644
--- a/CMake/fletch-tarballs.cmake
+++ b/CMake/fletch-tarballs.cmake
@@ -77,9 +77,9 @@ endif()
 list(APPEND fletch_external_sources PNG)
 
 # openjpeg
-set(openjpeg_version "2.3.0")
+set(openjpeg_version "2.3.1")
 set(openjpeg_url "https://github.com/uclouvain/openjpeg/archive/v${openjpeg_version}.tar.gz")
-set(openjpeg_md5 "6a1f8aaa1fe55d2088e3a9c942e0f698")
+set(openjpeg_md5 "3b9941dc7a52f0376694adb15a72903f")
 set(openjpeg_dlname "openjpeg-v${openjpeg_version}.tar.gz")
 list(APPEND fletch_external_sources openjpeg)