diff --git a/CHANGES.md b/CHANGES.md
index 951331ad..1e9cc417 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,7 +3,7 @@
 ## v3.8.0
 - Removed ACE as no longer needed by Gadgetron
 - Updated Versions:
-  - SIRF: cb8a9981b142006c3b01cf9264f51882afdad12a (9 July 2024)
+  - SIRF: a4d8cae6dd014194642d35e7fb9283e8da44a497 (10 July 2024)
   - STIR: a9b18e0f346759ce81ebc0695d9b571079ab48f0 (9 July 2024)
   - parallelproj: 1.9.1 (contains a fix for truncation of the TOF kernel)
   - CIL: b3d8ffeeec9413a3b54264e4097a445d2ef5b88b (29 June 2024)
diff --git a/version_config.cmake b/version_config.cmake
index 0de627e3..0d4248da 100644
--- a/version_config.cmake
+++ b/version_config.cmake
@@ -141,7 +141,7 @@ set(DEFAULT_STIR_TAG a9b18e0f346759ce81ebc0695d9b571079ab48f0)
 
 ## SIRF
 set(DEFAULT_SIRF_URL https://github.com/SyneRBI/SIRF)
-set(DEFAULT_SIRF_TAG cb8a9981b142006c3b01cf9264f51882afdad12a)
+set(DEFAULT_SIRF_TAG a4d8cae6dd014194642d35e7fb9283e8da44a497)
 
 ## pet-rd-tools
 set(DEFAULT_pet_rd_tools_URL https://github.com/UCL/pet-rd-tools)