diff --git a/.gitmodules b/.gitmodules
index f5c1b168def62d7e50b5cae600d3da68f58a5c15..304fa6b1d094ba34c252ddde62f91a81e1e90a73 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -16,3 +16,6 @@ url = https://git.soton.ac.uk/soclabs/nanosoc_tech.git
 [submodule "rtl_primitives_tech"]
 	path = rtl_primitives_tech
 	url = https://git.soton.ac.uk/soclabs/rtl_primitives_tech.git
+[submodule "sha256"]
+	path = sha256
+	url = https://github.com/secworks/sha256.git
diff --git a/env/dependency_env.sh b/env/dependency_env.sh
index bcde8187d3b8da6de60262bd8998b4f77f293cb5..b3ad78da190b7d3c494cd85c28bce6124e6f82ba 100755
--- a/env/dependency_env.sh
+++ b/env/dependency_env.sh
@@ -14,8 +14,8 @@
 # Technologies
 #-----------------------------------------------------------------------------
 
-# Accelerator Engine -- Add Your Accelerator Environment Variable HERE!
-# export YOUR_ACCELERATOR_DIR="$PROJECT_DIR/your_accelerator"
+# Accelerator Engine - Secworks SHA256
+export SHA256_ACC_DIR="$PROJECT_DIR/sha256"
 
 # Accelerator Wrapper
 export WRAPPER_TECH_DIR="$PROJECT_DIR/accelerator_wrapper_tech"
diff --git a/sha256 b/sha256
new file mode 160000
index 0000000000000000000000000000000000000000..999635ac1e17d0398f1183e4144a3fcacb6a3e23
--- /dev/null
+++ b/sha256
@@ -0,0 +1 @@
+Subproject commit 999635ac1e17d0398f1183e4144a3fcacb6a3e23