diff --git a/install/requirements.in b/install/requirements.in
index 0b1001443..d388216b8 100644
--- a/install/requirements.in
+++ b/install/requirements.in
@@ -1 +1 @@
-sigstore==4.4.0
+sigstore==4.5.0
diff --git a/install/requirements.txt b/install/requirements.txt
index d50324ebd..139f5c3dc 100644
--- a/install/requirements.txt
+++ b/install/requirements.txt
@@ -474,9 +474,9 @@ securesystemslib==1.4.0 \
     --hash=sha256:a0743a3d978cf26e98a70a57e3fbd5a18e0a74c20cabe615f6a55b02ef0272b3 \
     --hash=sha256:faea87be0f9c4b4277a5fa1b54bf9bfd807be9a94ab11be6c557dc8b75c43285
     # via tuf
-sigstore==4.4.0 \
-    --hash=sha256:20ffe791c1fa33ce62148c0291b46280d29c1910964d9afac419e9b1a8afc56b \
-    --hash=sha256:80c36d08b02479e2a282d0bea93de68fe0d43a93b0d58e4d9ac6bb9f8425957c
+sigstore==4.5.0 \
+    --hash=sha256:020d3e07f622b2916bf453e66ff6ff0711e1fdc5ab69e8bd8902f71d9fcb316f \
+    --hash=sha256:f045b207f2e12605cf775ec38e89c5eda625d71ffa7830477db65e47ec2bc8b2
     # via -r install/requirements.in
 sigstore-models==0.0.6 \
     --hash=sha256:5201a68f4d7d0f8bec1e2f4378eb646b084c52609a4e31db8c385095fff68b2e \