diff --git a/pkgs/development/misc/msp430/mspds/binary.nix b/pkgs/development/misc/msp430/mspds/binary.nix
index 36f5413e3b6b..8b71fa6c3a14 100644
--- a/pkgs/development/misc/msp430/mspds/binary.nix
+++ b/pkgs/development/misc/msp430/mspds/binary.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
   pname = "msp-debug-stack-bin";
   version = "3.15.1.1";
   src = fetchurl {
-    url = "http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPDS/3_15_1_001/export/MSP430_DLL_Developer_Package_Rev_3_15_1_1.zip";
+    url = "https://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPDS/3_15_1_001/export/MSP430_DLL_Developer_Package_Rev_3_15_1_1.zip";
     sha256 = "1m1ssrwbhqvqwbp3m4hnjyxnz3f9d4acz9vl1av3fbnhvxr0d2hb";
   };
   sourceRoot = ".";
diff --git a/pkgs/development/misc/msp430/mspds/default.nix b/pkgs/development/misc/msp430/mspds/default.nix
index da42aa8c9086..553fdec3fd96 100644
--- a/pkgs/development/misc/msp430/mspds/default.nix
+++ b/pkgs/development/misc/msp430/mspds/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   version = "3.15.1.1";
 
   src = fetchurl {
-    url = "http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPDS/3_15_1_001/export/MSPDebugStack_OS_Package_3_15_1_1.zip";
+    url = "https://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPDS/3_15_1_001/export/MSPDebugStack_OS_Package_3_15_1_1.zip";
     sha256 = "1j5sljqwc20zrb50mrji4mnmw5i680qc7n0lb0pakrrxqjc9m9g3";
   };
   sourceRoot = ".";