diff --git a/tools/catalyst-auto-amd64.conf b/tools/catalyst-auto-amd64.conf
index 40b97527..5ad68a57 100644
--- a/tools/catalyst-auto-amd64.conf
+++ b/tools/catalyst-auto-amd64.conf
@@ -2,7 +2,7 @@
 # self-explanatory.
 
 UPLOAD_USER=amd64
-UPLOAD_KEY=/root/.ssh/id_rsa
+UPLOAD_KEY=/root/.ssh/id_ed25519
 host=$(hostname)
 
 EMAIL_SUBJECT_PREPEND="[amd64-auto]"
diff --git a/tools/catalyst-auto-qemu-alpha.conf b/tools/catalyst-auto-qemu-alpha.conf
index cea886dc..04d3d8c9 100644
--- a/tools/catalyst-auto-qemu-alpha.conf
+++ b/tools/catalyst-auto-qemu-alpha.conf
@@ -2,7 +2,7 @@
 # self-explanatory.
  
 UPLOAD_USER=alpha
-UPLOAD_KEY=/root/.ssh/id_rsa
+UPLOAD_KEY=/root/.ssh/id_ed25519
 SPECS_DIR=${REPO_DIR}/releases/specs-qemu/alpha
 EMAIL_SUBJECT_PREPEND="[alpha-qemu-auto]"
 
diff --git a/tools/catalyst-auto-qemu-arm64.conf b/tools/catalyst-auto-qemu-arm64.conf
index 03bcfd96..19aa9722 100644
--- a/tools/catalyst-auto-qemu-arm64.conf
+++ b/tools/catalyst-auto-qemu-arm64.conf
@@ -2,7 +2,7 @@
 # self-explanatory.
 
 UPLOAD_USER=arm64
-UPLOAD_KEY=/root/.ssh/id_rsa
+UPLOAD_KEY=/root/.ssh/id_ed25519
 SPECS_DIR=${REPO_DIR}/releases/specs-qemu/arm64/be
 SUBARCH=aarch64_be
 
diff --git a/tools/catalyst-auto-qemu-loong.conf b/tools/catalyst-auto-qemu-loong.conf
index 415c3e32..08470313 100644
--- a/tools/catalyst-auto-qemu-loong.conf
+++ b/tools/catalyst-auto-qemu-loong.conf
@@ -2,7 +2,7 @@
 # self-explanatory.
 
 UPLOAD_USER=loong
-UPLOAD_KEY=/root/.ssh/id_rsa
+UPLOAD_KEY=/root/.ssh/id_ed25519
 
 host=$(hostname)
 
diff --git a/tools/catalyst-auto-qemu-m68k.conf b/tools/catalyst-auto-qemu-m68k.conf
index f2154c4a..62e6ccac 100644
--- a/tools/catalyst-auto-qemu-m68k.conf
+++ b/tools/catalyst-auto-qemu-m68k.conf
@@ -2,7 +2,7 @@
 # self-explanatory.
 
 UPLOAD_USER=m68k
-UPLOAD_KEY=/root/.ssh/id_rsa
+UPLOAD_KEY=/root/.ssh/id_ed25519
 
 host=$(hostname)
 
diff --git a/tools/catalyst-auto-qemu-riscv.conf b/tools/catalyst-auto-qemu-riscv.conf
index bcf6ea2e..3b3573d6 100644
--- a/tools/catalyst-auto-qemu-riscv.conf
+++ b/tools/catalyst-auto-qemu-riscv.conf
@@ -2,7 +2,7 @@
 # self-explanatory.
 
 UPLOAD_USER=riscv
-UPLOAD_KEY=/root/.ssh/id_rsa
+UPLOAD_KEY=/root/.ssh/id_ed25519
 
 host=$(hostname)
 
diff --git a/tools/catalyst-auto-x86.conf b/tools/catalyst-auto-x86.conf
index 2e8d5b86..896b9c2e 100644
--- a/tools/catalyst-auto-x86.conf
+++ b/tools/catalyst-auto-x86.conf
@@ -2,7 +2,7 @@
 # self-explanatory.
 
 UPLOAD_USER=x86
-UPLOAD_KEY=/root/.ssh/id_rsa
+UPLOAD_KEY=/root/.ssh/id_ed25519
 host=$(hostname)
 
 EMAIL_SUBJECT_PREPEND="[x86-auto]"