diff --git a/pkgs/by-name/ch/charmcraft/package.nix b/pkgs/by-name/ch/charmcraft/package.nix
index 8d39d10f6837..6f5707243d6f 100644
--- a/pkgs/by-name/ch/charmcraft/package.nix
+++ b/pkgs/by-name/ch/charmcraft/package.nix
@@ -7,6 +7,7 @@
   cacert,
   versionCheckHook,
   writableTmpDirAsHomeHook,
+  stdenv,
 }:
 let
   version = "4.10.0";
@@ -26,13 +27,24 @@ let
           substituteInPlace pyproject.toml --replace-fail "setuptools==75.8.0" "setuptools"
           substituteInPlace craft_application/git/_git_repo.py --replace-fail "/snap/core22/current/etc/ssl/certs" "${cacert}/etc/ssl/certs"
         '';
+
+        disabledTestPaths = [
+          # These tests assert outputs of commands that assume Ubuntu-related output.
+          "tests/unit/services/test_lifecycle.py"
+        ];
+
+        disabledTests =
+          old.disabledTests
+          ++ lib.optionals stdenv.hostPlatform.isAarch64 [
+            "test_process_grammar_full"
+          ];
       });
     };
   };
 in
 python.pkgs.buildPythonApplication rec {
   pname = "charmcraft";
-  version = "3.5.0";
+  version = "3.5.1";
 
   pyproject = true;
 
@@ -40,7 +52,7 @@ python.pkgs.buildPythonApplication rec {
     owner = "canonical";
     repo = "charmcraft";
     tag = version;
-    hash = "sha256-NIOfjd4r9mDP0x1IpIVJlU+Aza0a17bc3jDxtInrf4A=";
+    hash = "sha256-4zlUHttny6nIRhx/5aDz2sh1Va0+nN+7cezBGtt5Img=";
   };
 
   postPatch = ''
diff --git a/pkgs/by-name/sn/snapcraft/package.nix b/pkgs/by-name/sn/snapcraft/package.nix
index 630f8dce0f74..d8378dc610bd 100644
--- a/pkgs/by-name/sn/snapcraft/package.nix
+++ b/pkgs/by-name/sn/snapcraft/package.nix
@@ -14,7 +14,7 @@
 
 python312Packages.buildPythonApplication rec {
   pname = "snapcraft";
-  version = "8.9.2";
+  version = "8.9.4";
 
   pyproject = true;
 
@@ -22,7 +22,7 @@ python312Packages.buildPythonApplication rec {
     owner = "canonical";
     repo = "snapcraft";
     tag = version;
-    hash = "sha256-4Dv2q/aKWnQkQ6ANYev/5fT1fFKh1MytYJtHK0iAzhk=";
+    hash = "sha256-iiz+sVncztaCNndU+4YMhxECw7R6ks+25apRnd0WgyM=";
   };
 
   patches = [
@@ -111,6 +111,7 @@ python312Packages.buildPythonApplication rec {
     "docutils"
     "jsonschema"
     "pygit2"
+    "requests"
     "urllib3"
     "validators"
   ];
diff --git a/pkgs/development/python-modules/craft-application/default.nix b/pkgs/development/python-modules/craft-application/default.nix
index 8951c8982519..ec71f3dd4b4c 100644
--- a/pkgs/development/python-modules/craft-application/default.nix
+++ b/pkgs/development/python-modules/craft-application/default.nix
@@ -127,12 +127,21 @@ buildPythonPackage rec {
       "test_process_grammar_build_for"
       "test_process_grammar_platform"
       "test_process_grammar_default"
+      "test_create_craft_manifest"
+      "test_create_project_manifest"
+      "test_from_packed_artifact"
+      "test_teardown_session_create_manifest"
     ];
 
-  disabledTestPaths = [
-    # These tests assert outputs of commands that assume Ubuntu-related output.
-    "tests/unit/services/test_lifecycle.py"
-  ];
+  disabledTestPaths =
+    [
+      # These tests assert outputs of commands that assume Ubuntu-related output.
+      "tests/unit/services/test_lifecycle.py"
+    ]
+    ++ lib.optionals stdenv.hostPlatform.isAarch64 [
+      # Hard-coded assumptions around use of "amd64" arch strings.
+      "tests/unit/services/test_project.py"
+    ];
 
   passthru.updateScript = nix-update-script { };
 
diff --git a/pkgs/development/python-modules/craft-parts/default.nix b/pkgs/development/python-modules/craft-parts/default.nix
index 279e41668dbe..9f1447fe3bfc 100644
--- a/pkgs/development/python-modules/craft-parts/default.nix
+++ b/pkgs/development/python-modules/craft-parts/default.nix
@@ -109,6 +109,8 @@ buildPythonPackage rec {
       # These tests have hardcoded "amd64" strings which fail on aarch64
       "tests/unit/executor/test_environment.py"
       "tests/unit/features/overlay/test_executor_environment.py"
+      # Hard-coded assumptions about arguments relating to 'x86_64'
+      "tests/unit/plugins/test_dotnet_v2_plugin.py"
     ];
 
   passthru.updateScript = nix-update-script { };