diff --git a/global_install_scripts/install.bash b/global_install_scripts/install.bash
index a52f5fd4..15160f3e 100755
--- a/global_install_scripts/install.bash
+++ b/global_install_scripts/install.bash
@@ -144,7 +144,12 @@ function run() {
 
     pushd ${TEMP_DIR} >/dev/null 2>&1
     grep ${TALISMAN_BINARY_NAME} ${CHECKSUM_FILE_NAME} >${CHECKSUM_FILE_NAME}.single
-    shasum -a 256 -c ${CHECKSUM_FILE_NAME}.single
+
+    if ! command -v shasum &> /dev/null; then
+      sha256sum -c ${CHECKSUM_FILE_NAME}.single
+    else
+      shasum -a 256 -c ${CHECKSUM_FILE_NAME}.single
+    fi
     popd >/dev/null 2>&1
     echo_debug "Checksum verification successfull!"
     echo
diff --git a/global_install_scripts/update_talisman.bash b/global_install_scripts/update_talisman.bash
index eaf9103c..b24de8e5 100755
--- a/global_install_scripts/update_talisman.bash
+++ b/global_install_scripts/update_talisman.bash
@@ -122,7 +122,12 @@ function run() {
 
     pushd ${TEMP_DIR} >/dev/null 2>&1
     grep ${TALISMAN_BINARY_NAME} ${CHECKSUM_FILE_NAME} >${CHECKSUM_FILE_NAME}.single
-    shasum -a 256 -c ${CHECKSUM_FILE_NAME}.single
+
+    if ! command -v shasum &> /dev/null; then
+      sha256sum -c ${CHECKSUM_FILE_NAME}.single
+    else
+      shasum -a 256 -c ${CHECKSUM_FILE_NAME}.single
+    fi
     popd >/dev/null 2>&1
     echo_debug "Checksum verification successful!"
     echo
diff --git a/install.sh b/install.sh
index 24f72069..89b30327 100755
--- a/install.sh
+++ b/install.sh
@@ -134,7 +134,12 @@ run() {
 
 		pushd ${TEMP_DIR} >/dev/null 2>&1
 		grep ${TALISMAN_BINARY_NAME} ${CHECKSUM_FILE_NAME} >${CHECKSUM_FILE_NAME}.single
-		shasum -a 256 -c ${CHECKSUM_FILE_NAME}.single
+    
+    if ! command -v shasum &> /dev/null; then
+      sha256sum -c ${CHECKSUM_FILE_NAME}.single
+    else
+      shasum -a 256 -c ${CHECKSUM_FILE_NAME}.single
+    fi
 		popd >/dev/null 2>&1
 		echo_debug "Checksum verification successful!"
 		echo