diff --git a/charmcraft/models/project.py b/charmcraft/models/project.py
index cc32425e8..f0dd82a69 100644
--- a/charmcraft/models/project.py
+++ b/charmcraft/models/project.py
@@ -640,11 +640,11 @@ class PlatformCharm(CharmcraftProject):
     summary: CharmcraftSummaryStr
     description: str
 
-    base: BaseStr
+    # Silencing pyright because it complains about missing default value
+    base: BaseStr  # pyright: ignore[reportGeneralTypeIssues]
     build_base: BuildBaseStr | None = None
-    platforms: dict[str, Platform | None]
-
-    parts: dict[str, dict[str, Any]]  # craft-parts parts
+    platforms: dict[str, Platform | None]  # pyright: ignore[reportGeneralTypeIssues]
+    parts: dict[str, dict[str, Any]]  # pyright: ignore[reportGeneralTypeIssues]
 
     actions: dict[str, Any] | None
     assumes: list[str | dict[str, list | dict]] | None
diff --git a/pyproject.toml b/pyproject.toml
index e6c2bb2a3..086ba5b55 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,7 +64,7 @@ lint = [
 ]
 types = [
     "mypy[reports]~=1.5",
-    "pyright==1.1.354",
+    "pyright==1.1.366",
     "types-python-dateutil",
     "types-requests<2.31.0.20240312",  # Frozen until we can get urllib3 v2
     "types-setuptools",