diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1ebedc774..40a65fa2a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -63,7 +63,7 @@ function (CHECK_EXT NAME DIR HASH)
   endif (GIT_FOUND)
 endfunction ()
 
-check_ext ("OpenEXR" "openexr/OpenEXR" 5cfb5dab6dfada731586b0281bdb15ee75e26782)
+check_ext ("OpenEXR" "openexr/OpenEXR" ca757f97033ae7cfcc6130f23c0e9ee86b108b07)
 check_ext ("OpenVDB" "openvdb/nanovdb" 414bed84c2fc22e188eac7b611aa85c7edd7a5a9)
 check_ext ("Ptex" "ptex/src" 4cd8e9a6db2b06e478dfbbd8c26eb6df97f84483)
 check_ext ("double-conversion" "double-conversion/cmake" cc1f75a114aca8d2af69f73a5a959aecbab0e87a)
diff --git a/src/ext/CMakeLists.txt b/src/ext/CMakeLists.txt
index fee478525..412008035 100644
--- a/src/ext/CMakeLists.txt
+++ b/src/ext/CMakeLists.txt
@@ -57,7 +57,7 @@ set (ZLIB_LIBRARIES ${ZLIB_LIBARIES} PARENT_SCOPE)
 ###########################################################################
 # OpenEXR
 
-find_package (OpenEXR 2.3) # 2.3 is the first version compatible with C++17
+find_package (OpenEXR)
 
 if (OPENEXR_FOUND)
   message (STATUS "Found OpenEXR version ${OPENEXR_VERSION}")
diff --git a/src/ext/openexr b/src/ext/openexr
index 5cfb5dab6..ca757f970 160000
--- a/src/ext/openexr
+++ b/src/ext/openexr
@@ -1 +1 @@
-Subproject commit 5cfb5dab6dfada731586b0281bdb15ee75e26782
+Subproject commit ca757f97033ae7cfcc6130f23c0e9ee86b108b07