diff --git a/api/poetry.lock b/api/poetry.lock
index 42d7578ca..91770c4a8 100644
--- a/api/poetry.lock
+++ b/api/poetry.lock
@@ -2108,7 +2108,7 @@ testing = ["coverage (>=5.0.3)", "zope.event", "zope.testing"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "b95c00cef5eb692a67cf088c8fe7617f6d034bbaa020c311c798e75f6c55530f"
+content-hash = "a515d4fc7fb3c6fe99568b66a488c016c9a79896e30fca358a7415977d41356f"
 
 [metadata.files]
 aiohttp = [
diff --git a/api/pyproject.toml b/api/pyproject.toml
index a984a8660..d6f706df1 100644
--- a/api/pyproject.toml
+++ b/api/pyproject.toml
@@ -56,7 +56,7 @@ python-ldap = "==3.4.0"
 django-auth-ldap = "==4.0.0"
 uvicorn = {version = "==0.17.6", extras = ["standard"]}
 django-cache-memoize = "0.1.10"
-requests-http-message-signatures = "^0.3.0-alpha.0"
+requests-http-message-signatures = "0.3.0-alpha.1"
 
 [tool.poetry.dev-dependencies]
 flake8 = "==3.9.2"