diff --git a/s3CacheTask/package-lock.json b/s3CacheTask/package-lock.json
index 106b6003..1a1062a8 100644
--- a/s3CacheTask/package-lock.json
+++ b/s3CacheTask/package-lock.json
@@ -10,7 +10,7 @@
       "license": "ISC",
       "dependencies": {
         "aws-sdk": "^2.859.0",
-        "azure-pipelines-task-lib": "^3.1.0",
+        "azure-pipelines-task-lib": "^3.4.0",
         "crypto": "^1.0.1",
         "docker": "^1.0.0",
         "fs": "^0.0.1-security",
@@ -1315,15 +1315,16 @@
       "optional": true
     },
     "node_modules/azure-pipelines-task-lib": {
-      "version": "3.1.10",
-      "resolved": "https://registry.npmjs.org/azure-pipelines-task-lib/-/azure-pipelines-task-lib-3.1.10.tgz",
-      "integrity": "sha512-S5iH1mD9G7boOV0kjVsFkqlz/6FOZjQAajshj3ajzQK9Wr3XRq9JK9+grJP4ityG6of28X2XWpieFdJLhnWLoA==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/azure-pipelines-task-lib/-/azure-pipelines-task-lib-3.4.0.tgz",
+      "integrity": "sha512-3eC4OTFw+7xD7A2aUhxR/j+jRlTI+vVfS0CGxt1pCLs4c/KmY0tQWgbqjD3157kmiucWxELBvgZHaD2gCBe9fg==",
+      "license": "MIT",
       "dependencies": {
-        "minimatch": "3.0.4",
-        "mockery": "^1.7.0",
+        "minimatch": "3.0.5",
+        "mockery": "^2.1.0",
         "q": "^1.5.1",
         "semver": "^5.1.0",
-        "shelljs": "^0.8.4",
+        "shelljs": "^0.8.5",
         "sync-request": "6.1.0",
         "uuid": "^3.0.1"
       }
@@ -3349,6 +3350,7 @@
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       "resolved": "https://registry.npmjs.org/interpret/-/interpret-1.4.0.tgz",
       "integrity": "sha512-agE4QfB2Lkp9uICn7BAqoscw4SZP9kTE2hxiFI3jBPmXJfdqiahTbUuKGsMoN2GtqL9AxhYioAcVvgsb1HvRbA==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.10"
       }
@@ -4642,9 +4644,10 @@
       }
     },
     "node_modules/minimatch": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.5.tgz",
+      "integrity": "sha512-tUpxzX0VAzJHjLu0xUfFv1gwVp9ba3IOuRAVH2EGuRW8a5emA2FlACLqiT/lDVtS1W+TGNwqz3sWaNyLgDJWuw==",
+      "license": "ISC",
       "dependencies": {
         "brace-expansion": "^1.1.7"
       },
@@ -4696,9 +4699,9 @@
       "dev": true
     },
     "node_modules/mockery": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/mockery/-/mockery-1.7.0.tgz",
-      "integrity": "sha1-9O3g2HUMHJcnwnLqLGBiniyaHE8="
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/mockery/-/mockery-2.1.0.tgz",
+      "integrity": "sha512-9VkOmxKlWXoDO/h1jDZaS4lH33aWfRiJiNT/tKj+8OGzrcFDLo8d0syGdbsc3Bc4GvRXPb+NMMvojotmuGJTvA=="
     },
     "node_modules/ms": {
       "version": "2.1.2",
@@ -5378,7 +5381,7 @@
     "node_modules/rechoir": {
       "version": "0.6.2",
       "resolved": "https://registry.npmjs.org/rechoir/-/rechoir-0.6.2.tgz",
-      "integrity": "sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=",
+      "integrity": "sha512-HFM8rkZ+i3zrV+4LQjwQ0W+ez98pApMGM3HUrN04j3CqzPOzl9nmP15Y8YXNm8QHGv/eacOVEjqhmWpkRV0NAw==",
       "dependencies": {
         "resolve": "^1.1.6"
       },
@@ -6076,9 +6079,10 @@
       }
     },
     "node_modules/shelljs": {
-      "version": "0.8.4",
-      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.4.tgz",
-      "integrity": "sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==",
+      "version": "0.8.5",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.5.tgz",
+      "integrity": "sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==",
+      "license": "BSD-3-Clause",
       "dependencies": {
         "glob": "^7.0.0",
         "interpret": "^1.0.0",
@@ -8555,15 +8559,15 @@
       "optional": true
     },
     "azure-pipelines-task-lib": {
-      "version": "3.1.10",
-      "resolved": "https://registry.npmjs.org/azure-pipelines-task-lib/-/azure-pipelines-task-lib-3.1.10.tgz",
-      "integrity": "sha512-S5iH1mD9G7boOV0kjVsFkqlz/6FOZjQAajshj3ajzQK9Wr3XRq9JK9+grJP4ityG6of28X2XWpieFdJLhnWLoA==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/azure-pipelines-task-lib/-/azure-pipelines-task-lib-3.4.0.tgz",
+      "integrity": "sha512-3eC4OTFw+7xD7A2aUhxR/j+jRlTI+vVfS0CGxt1pCLs4c/KmY0tQWgbqjD3157kmiucWxELBvgZHaD2gCBe9fg==",
       "requires": {
-        "minimatch": "3.0.4",
-        "mockery": "^1.7.0",
+        "minimatch": "3.0.5",
+        "mockery": "^2.1.0",
         "q": "^1.5.1",
         "semver": "^5.1.0",
-        "shelljs": "^0.8.4",
+        "shelljs": "^0.8.5",
         "sync-request": "6.1.0",
         "uuid": "^3.0.1"
       }
@@ -11122,9 +11126,9 @@
       "dev": true
     },
     "minimatch": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.5.tgz",
+      "integrity": "sha512-tUpxzX0VAzJHjLu0xUfFv1gwVp9ba3IOuRAVH2EGuRW8a5emA2FlACLqiT/lDVtS1W+TGNwqz3sWaNyLgDJWuw==",
       "requires": {
         "brace-expansion": "^1.1.7"
       }
@@ -11164,9 +11168,9 @@
       "dev": true
     },
     "mockery": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/mockery/-/mockery-1.7.0.tgz",
-      "integrity": "sha1-9O3g2HUMHJcnwnLqLGBiniyaHE8="
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/mockery/-/mockery-2.1.0.tgz",
+      "integrity": "sha512-9VkOmxKlWXoDO/h1jDZaS4lH33aWfRiJiNT/tKj+8OGzrcFDLo8d0syGdbsc3Bc4GvRXPb+NMMvojotmuGJTvA=="
     },
     "ms": {
       "version": "2.1.2",
@@ -11698,7 +11702,7 @@
     "rechoir": {
       "version": "0.6.2",
       "resolved": "https://registry.npmjs.org/rechoir/-/rechoir-0.6.2.tgz",
-      "integrity": "sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=",
+      "integrity": "sha512-HFM8rkZ+i3zrV+4LQjwQ0W+ez98pApMGM3HUrN04j3CqzPOzl9nmP15Y8YXNm8QHGv/eacOVEjqhmWpkRV0NAw==",
       "requires": {
         "resolve": "^1.1.6"
       }
@@ -12249,9 +12253,9 @@
       "dev": true
     },
     "shelljs": {
-      "version": "0.8.4",
-      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.4.tgz",
-      "integrity": "sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==",
+      "version": "0.8.5",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.5.tgz",
+      "integrity": "sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==",
       "requires": {
         "glob": "^7.0.0",
         "interpret": "^1.0.0",
diff --git a/s3CacheTask/package.json b/s3CacheTask/package.json
index 97bd6837..f2227e14 100644
--- a/s3CacheTask/package.json
+++ b/s3CacheTask/package.json
@@ -21,7 +21,7 @@
   "homepage": "https://github.com/NHSDigital/apim-s3-cache-action#readme",
   "dependencies": {
     "aws-sdk": "^2.859.0",
-    "azure-pipelines-task-lib": "^3.1.0",
+    "azure-pipelines-task-lib": "^3.4.0",
     "crypto": "^1.0.1",
     "docker": "^1.0.0",
     "fs": "^0.0.1-security",