diff --git a/Firely.Fhir.Packages.Tests/FhirPackageSourceTest.cs b/Firely.Fhir.Packages.Tests/FhirPackageSourceTest.cs
index 474529b..0d42839 100644
--- a/Firely.Fhir.Packages.Tests/FhirPackageSourceTest.cs
+++ b/Firely.Fhir.Packages.Tests/FhirPackageSourceTest.cs
@@ -150,6 +150,13 @@ public async Task TestFhirCorePackages(FhirRelease release, string version, stri
             var extension = await packageSource!.ResolveByCanonicalUriAsyncAsString("http://hl7.org/fhir/StructureDefinition/patient-mothersMaidenName");
             extension.Should().NotBeNull();
             extension.Should().Contain("\"url\":\"http://hl7.org/fhir/StructureDefinition/patient-mothersMaidenName\"");
+
+            if (release == FhirRelease.R5)
+            {
+                var toolingextension = await packageSource!.ResolveByCanonicalUriAsyncAsString("http://hl7.org/fhir/tools/StructureDefinition/elementdefinition-date-format");
+                toolingextension.Should().NotBeNull();
+                toolingextension.Should().Contain("\"url\":\"http://hl7.org/fhir/tools/StructureDefinition/elementdefinition-date-format\"");
+            }
         }
     }
 }
diff --git a/Firely.Fhir.Packages.Tests/TestHelper.cs b/Firely.Fhir.Packages.Tests/TestHelper.cs
index 40850ae..1fc5dc3 100644
--- a/Firely.Fhir.Packages.Tests/TestHelper.cs
+++ b/Firely.Fhir.Packages.Tests/TestHelper.cs
@@ -102,7 +102,7 @@ static IEnumerable<PackageDependency> createDependencies(string[] dependencies)
                         yield return new PackageDependency(dep, "latest");
                     else
                     {
-                        var versionDep = "=" + splitDependency[1];
+                        var versionDep = splitDependency[1];
                         yield return new PackageDependency(splitDependency[0], versionDep);
                     }
                 }
diff --git a/Firely.Fhir.Packages/Source/FhirPackageSource.cs b/Firely.Fhir.Packages/Source/FhirPackageSource.cs
index 977b71b..22619c7 100644
--- a/Firely.Fhir.Packages/Source/FhirPackageSource.cs
+++ b/Firely.Fhir.Packages/Source/FhirPackageSource.cs
@@ -52,7 +52,7 @@ public FhirPackageSource(ModelInspector provider, string packageServer, string[]
                 FhirRelease.STU3 => new FhirPackageSource(provider, packageServer, new string[] { "hl7.fhir.r3.core@3.0.2", "hl7.fhir.r3.expansions@3.0.2" }),
                 FhirRelease.R4 => new FhirPackageSource(provider, packageServer, new string[] { "hl7.fhir.r4.core@4.0.1", "hl7.fhir.r4.expansions@4.0.1", "hl7.fhir.uv.extensions.r4@1.0.0" }),
                 FhirRelease.R4B => new FhirPackageSource(provider, packageServer, new string[] { "hl7.fhir.r4b.core@4.3.0", "hl7.fhir.r4b.expansions@4.3.0", "hl7.fhir.uv.extensions.r4@1.0.0" }),
-                FhirRelease.R5 => new FhirPackageSource(provider, packageServer, new string[] { "hl7.fhir.r5.core@5.0.0", "hl7.fhir.r5.expansions@5.0.0", "hl7.fhir.uv.extensions.r5@1.0.0" }),
+                FhirRelease.R5 => new FhirPackageSource(provider, packageServer, new string[] { "hl7.fhir.r5.core@5.0.0", "hl7.fhir.r5.expansions@5.0.0", "hl7.fhir.uv.extensions.r5@1.0.0", "hl7.fhir.uv.tools@<=1.0.0" }),
                 _ => null,
             };
         }
@@ -95,7 +95,7 @@ static IEnumerable<PackageDependency> createDependencies(string[] dependencies)
                         yield return new PackageDependency(dep, "latest");
                     else
                     {
-                        var versionDep = "=" + splitDependency[1];
+                        var versionDep = splitDependency[1];
                         yield return new PackageDependency(splitDependency[0], versionDep);
                     }
                 }