diff --git a/docs/about/features.rst b/docs/about/features.rst
index 5895472..49b74ae 100644
--- a/docs/about/features.rst
+++ b/docs/about/features.rst
@@ -117,11 +117,11 @@
 
 -  Ongoing security hardening, optimization and quality improvements.
 
-.. _SMC Calling Convention: http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf
+.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest
 .. _OP-TEE Secure OS: https://github.com/OP-TEE/optee_os
 .. _NVIDIA Trusted Little Kernel: http://nv-tegra.nvidia.com/gitweb/?p=3rdparty/ote_partner/tlk.git;a=summary
 .. _Trusty Secure OS: https://source.android.com/security/trusty
 
 --------------
 
-*Copyright (c) 2020, Arm Limited. All rights reserved.*
+*Copyright (c) 2019-2020, Arm Limited. All rights reserved.*
diff --git a/docs/components/arm-sip-service.rst b/docs/components/arm-sip-service.rst
index 01bc04d..b51a94d 100644
--- a/docs/components/arm-sip-service.rst
+++ b/docs/components/arm-sip-service.rst
@@ -430,6 +430,6 @@
 
 --------------
 
-*Copyright (c) 2017-2019, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2017-2020, Arm Limited and Contributors. All rights reserved.*
 
-.. _SMC Calling Convention: http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest
diff --git a/docs/components/debugfs-design.rst b/docs/components/debugfs-design.rst
index 8ce1ba6..a4f98d0 100644
--- a/docs/components/debugfs-design.rst
+++ b/docs/components/debugfs-design.rst
@@ -119,7 +119,7 @@
 
 *Copyright (c) 2019-2020, Arm Limited and Contributors. All rights reserved.*
 
-.. _SMC Calling Convention PDD: http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/
+.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest
 .. _Notes on the Plan 9 Kernel Source: http://lsub.org/who/nemo/9.pdf
 .. _Linux 9p remote filesystem protocol: https://www.kernel.org/doc/Documentation/filesystems/9p.txt
 .. _ARM SiP Services: arm-sip-service.rst
diff --git a/docs/components/exception-handling.rst b/docs/components/exception-handling.rst
index e330a62..4cca5f4 100644
--- a/docs/components/exception-handling.rst
+++ b/docs/components/exception-handling.rst
@@ -467,7 +467,7 @@
 Non-secure world to request Secure services. They're broadly classified as
 *Fast* or *Yielding* (see `SMCCC`__).
 
-.. __: http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+.. __: https://developer.arm.com/docs/den0028/latest
 
 -  *Fast* SMCs are atomic from the caller's point of view. I.e., they return
    to the caller only when the Secure world has finished serving the request.
diff --git a/docs/components/secure-partition-manager-design.rst b/docs/components/secure-partition-manager-design.rst
index 52b1c03..4f67185 100644
--- a/docs/components/secure-partition-manager-design.rst
+++ b/docs/components/secure-partition-manager-design.rst
@@ -807,13 +807,13 @@
 
 --------------
 
-*Copyright (c) 2017-2019, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2017-2020, Arm Limited and Contributors. All rights reserved.*
 
 .. _Armv8-A ARM: https://developer.arm.com/docs/ddi0487/latest/arm-architecture-reference-manual-armv8-for-armv8-a-architecture-profile
 .. _instructions in the EDK2 repository: https://github.com/tianocore/edk2-staging/blob/AArch64StandaloneMm/HowtoBuild.MD
 .. _Management Mode Interface Specification: http://infocenter.arm.com/help/topic/com.arm.doc.den0060a/DEN0060A_ARM_MM_Interface_Specification.pdf
 .. _SDEI Specification: http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf
-.. _SMC Calling Convention: http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf
+.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest
 
 .. |Image 1| image:: ../resources/diagrams/secure_sw_stack_tos.png
 .. |Image 2| image:: ../resources/diagrams/secure_sw_stack_sp.png
diff --git a/docs/design/firmware-design.rst b/docs/design/firmware-design.rst
index 8e9dc38..7d99d86 100644
--- a/docs/design/firmware-design.rst
+++ b/docs/design/firmware-design.rst
@@ -2720,11 +2720,11 @@
 *Copyright (c) 2013-2020, Arm Limited and Contributors. All rights reserved.*
 
 .. _Power State Coordination Interface PDD: http://infocenter.arm.com/help/topic/com.arm.doc.den0022d/Power_State_Coordination_Interface_PDD_v1_1_DEN0022D.pdf
-.. _SMCCC: http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf
+.. _SMCCC: https://developer.arm.com/docs/den0028/latest
 .. _PSCI: http://infocenter.arm.com/help/topic/com.arm.doc.den0022d/Power_State_Coordination_Interface_PDD_v1_1_DEN0022D.pdf
 .. _Power State Coordination Interface PDD: http://infocenter.arm.com/help/topic/com.arm.doc.den0022d/Power_State_Coordination_Interface_PDD_v1_1_DEN0022D.pdf
 .. _Arm ARM: https://developer.arm.com/docs/ddi0487/latest
-.. _SMC Calling Convention PDD: http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf
+.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest
 .. _Trusted Board Boot Requirements CLIENT (TBBR-CLIENT) Armv8-A (ARM DEN0006D): https://developer.arm.com/docs/den0006/latest/trusted-board-boot-requirements-client-tbbr-client-armv8-a
 
 .. |Image 1| image:: ../resources/diagrams/rt-svc-descs-layout.png
diff --git a/docs/design/interrupt-framework-design.rst b/docs/design/interrupt-framework-design.rst
index d155cb3..14f7227 100644
--- a/docs/design/interrupt-framework-design.rst
+++ b/docs/design/interrupt-framework-design.rst
@@ -1011,9 +1011,9 @@
 
 --------------
 
-*Copyright (c) 2014-2019, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2014-2020, Arm Limited and Contributors. All rights reserved.*
 
-.. _SMC calling convention: http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+.. _SMC calling convention: https://developer.arm.com/docs/den0028/latest
 
 .. |Image 1| image:: ../resources/diagrams/sec-int-handling.png
 .. |Image 2| image:: ../resources/diagrams/non-sec-int-handling.png
diff --git a/docs/getting_started/psci-lib-integration-guide.rst b/docs/getting_started/psci-lib-integration-guide.rst
index 1351fff..3735265 100644
--- a/docs/getting_started/psci-lib-integration-guide.rst
+++ b/docs/getting_started/psci-lib-integration-guide.rst
@@ -538,9 +538,9 @@
 
 --------------
 
-*Copyright (c) 2016-2019, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2016-2020, Arm Limited and Contributors. All rights reserved.*
 
 .. _PSCI spec: http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
-.. _SMCCC: https://silver.arm.com/download/ARM_and_AMBA_Architecture/AR570-DA-80002-r0p0-00rel0/ARM_DEN0028A_SMC_Calling_Convention.pdf
+.. _SMCCC: https://developer.arm.com/docs/den0028/latest
 .. _PSCI specification: http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
 .. _PSCI Specification: http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
diff --git a/docs/getting_started/rt-svc-writers-guide.rst b/docs/getting_started/rt-svc-writers-guide.rst
index 5375b65..b3758b8 100644
--- a/docs/getting_started/rt-svc-writers-guide.rst
+++ b/docs/getting_started/rt-svc-writers-guide.rst
@@ -314,7 +314,7 @@
 
 --------------
 
-*Copyright (c) 2014-2019, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2014-2020, Arm Limited and Contributors. All rights reserved.*
 
-.. _SMCCC: http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+.. _SMCCC: https://developer.arm.com/docs/den0028/latest
 .. _PSCI: http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
diff --git a/docs/index.rst b/docs/index.rst
index 7413edd..cb53127 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -91,4 +91,4 @@
 .. _Trusted Board Boot Requirements CLIENT (TBBR-CLIENT): https://developer.arm.com/docs/den0006/latest/trusted-board-boot-requirements-client-tbbr-client-armv8-a
 .. _System Control and Management Interface (SCMI): http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/DEN0056A_System_Control_and_Management_Interface.pdf
 .. _Software Delegated Exception Interface (SDEI): http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf
-.. _SMC Calling Convention: http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf
+.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest
diff --git a/docs/security_advisories/security-advisory-tfv-8.rst b/docs/security_advisories/security-advisory-tfv-8.rst
index c401eb3..ebe324e 100644
--- a/docs/security_advisories/security-advisory-tfv-8.rst
+++ b/docs/security_advisories/security-advisory-tfv-8.rst
@@ -99,5 +99,5 @@
 
 .. _CVE-2018-19440: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19440
 .. _commit c385955: https://github.com/ARM-software/arm-trusted-firmware/commit/c385955
-.. _SMC Calling Convention: http://arminfo.emea.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf
+.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest
 .. _Pull Request #1710: https://github.com/ARM-software/arm-trusted-firmware/pull/1710