diff --git a/mypy-requirements.txt b/mypy-requirements.txt
index 3596f497..11c21daa 100644
--- a/mypy-requirements.txt
+++ b/mypy-requirements.txt
@@ -1,10 +1,10 @@
-aiohttp==3.14.1
+aiohttp==3.14.3
 alive_progress>=3.3.0
-mypy==2.1.0
+mypy==2.3.0
 pyfakefs
 pytest
 pytest-mock
 python-gnupg  # untyped :(
-sigstore==4.2.0
+sigstore==4.4.0
 types-paramiko
 types-requests
diff --git a/requirements.in b/requirements.in
index 43fddcbc..374e9ba2 100644
--- a/requirements.in
+++ b/requirements.in
@@ -5,4 +5,4 @@ alive_progress>=3.3.0
 python-gnupg
 aiohttp
 blurb>=1.2.1
-sigstore>=4.2.0
+sigstore>=4.4.0
diff --git a/requirements.txt b/requirements.txt
index a037fde0..0179e4f2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -924,8 +924,8 @@ rich==13.9.4 \
 securesystemslib==1.2.0 \
     --hash=sha256:fa63abcb1cf4dba4f2df964f623baa45bc39029980d7a0a2119d90731942afc6
     # via tuf
-sigstore==4.2.0 \
-    --hash=sha256:ed2e0f50aae85148a8aa4fc0f57c298927fce430ad1f988f38611ce90c85829f
+sigstore==4.4.0 \
+    --hash=sha256:80c36d08b02479e2a282d0bea93de68fe0d43a93b0d58e4d9ac6bb9f8425957c
     # via -r requirements.in
 sigstore-models==0.0.6 \
     --hash=sha256:5201a68f4d7d0f8bec1e2f4378eb646b084c52609a4e31db8c385095fff68b2e