diff --git a/.envrc b/.envrc
index 3a3d8bbadd..cedd1f27da 100644
--- a/.envrc
+++ b/.envrc
@@ -9,7 +9,7 @@ use_guix-shell() {
   fi
 }
 
-use guix-shell gcc-cross-avr-toolchain avrdude make python-wrapper qmk git coreutils sed grep bash gawk diffutils
+use guix-shell gcc-cross-avr-toolchain avrdude dfu-util dfu-programmer make python-wrapper qmk git coreutils sed grep bash gawk diffutils
 
 # TODO: currently the following needs to be set to allow the linker to find avr-libc
 # See: https://issues.guix.gnu.org/69394