diff --git a/steps/H5ParmCollector.cwl b/steps/H5ParmCollector.cwl
index 3800117ebedcb9b385adb0ef8c806409305bbe93..c305a339de3dcb0e1ed6b91cc9290ef44922690f 100755
--- a/steps/H5ParmCollector.cwl
+++ b/steps/H5ParmCollector.cwl
@@ -81,7 +81,7 @@ outputs:
 label: H5parm_collector
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 stdout: $(inputs.outh5parmname)-parm_collector_output.log
 stderr: $(inputs.outh5parmname)-parm_collector_output_err.log
 requirements:
diff --git a/steps/add_missing_stations.cwl b/steps/add_missing_stations.cwl
index 88b877e824b13e69ab5d9b78068f23490e49398e..9249ff1273d9c7acb2e9df9b222b6206758a3142 100644
--- a/steps/add_missing_stations.cwl
+++ b/steps/add_missing_stations.cwl
@@ -76,7 +76,7 @@ stderr: add_missing_stations_err.log
 label: add_missing_stations
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 requirements:
   - class: InlineJavascriptRequirement
   - class: InitialWorkDirRequirement
diff --git a/steps/applybeam.cwl b/steps/applybeam.cwl
index 3c66b11f049e27eed28ed80c60edee8df36f624b..c8404af5f4e42b5d4215577cc56eeeee7a16d610 100644
--- a/steps/applybeam.cwl
+++ b/steps/applybeam.cwl
@@ -109,4 +109,4 @@ requirements:
     coresMin: $(inputs.max_dp3_threads)
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
diff --git a/steps/applycal.cwl b/steps/applycal.cwl
index 808f888cd6bf81153ad01ce9dd7a394cc41ea35f..1ee860c6f2c3e8472ece91ee0a16276b92953de6 100644
--- a/steps/applycal.cwl
+++ b/steps/applycal.cwl
@@ -115,4 +115,4 @@ requirements:
     coresMin: $(inputs.max_dp3_threads)
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
diff --git a/steps/applytarget.cwl b/steps/applytarget.cwl
index 1d905bf1a22be6fac34776782b755fe306c3bb4f..1bf6c350bdaa082cfdb17ed3ef269502402065de 100644
--- a/steps/applytarget.cwl
+++ b/steps/applytarget.cwl
@@ -116,4 +116,4 @@ requirements:
     coresMin: 2
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
diff --git a/steps/average.cwl b/steps/average.cwl
index 42ab47ae52ce352daaf944ad1248d82fdd33cbc4..923cf6c992ba551b1d6c356d1c2dfc0272cbbecd 100644
--- a/steps/average.cwl
+++ b/steps/average.cwl
@@ -92,6 +92,6 @@ requirements:
     coresMin: 8
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 stdout: average.log
 stderr: average_err.log
diff --git a/steps/dp3concat.cwl b/steps/dp3concat.cwl
index 5c4660d11dea05f1fd5144c0810a9babd4c5a0ab..6f4f7c81a028e8ec3146b8d1964807a0d538ec8e 100644
--- a/steps/dp3concat.cwl
+++ b/steps/dp3concat.cwl
@@ -163,7 +163,7 @@ requirements:
     coresMin: 8
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
   - class: InitialWorkDirRequirement
     listing:
       - entry: $(inputs.msin)
diff --git a/steps/merge_skymodels.cwl b/steps/merge_skymodels.cwl
index 673dbbd4479b57e4c134f1cc87b1ba8aaceb3b71..69b858014ca6a7f88ef540ad0d02fb06208ab416 100755
--- a/steps/merge_skymodels.cwl
+++ b/steps/merge_skymodels.cwl
@@ -58,6 +58,6 @@ outputs:
 label: merge_skymodels
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 stdout: merge_skymodels.log
 stderr: merge_skymodels_err.log
diff --git a/steps/plot_unflagged.cwl b/steps/plot_unflagged.cwl
index 3123ad18e919320cfc959b15552e386574f9cc3e..6c199049b8289e136ebeb9a9616fff3e56c1ca6a 100644
--- a/steps/plot_unflagged.cwl
+++ b/steps/plot_unflagged.cwl
@@ -41,7 +41,7 @@ outputs:
 
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 requirements:
   - class: InlineJavascriptRequirement
 stdout: plot_unflagged_fraction.log
diff --git a/steps/taql.cwl b/steps/taql.cwl
index 57f4c7810922e5f919556b4a09806db907c09efc..81b0b83713151b6fe7359bc746e45cde1de62ff5 100644
--- a/steps/taql.cwl
+++ b/steps/taql.cwl
@@ -40,7 +40,7 @@ outputs:
 label: TaQL
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 requirements:
   - class: ShellCommandRequirement
   - class: InplaceUpdateRequirement
diff --git a/steps/taql_copy.cwl b/steps/taql_copy.cwl
index f93da30e103f2e929fd29345fe0c1df39e9f5dd9..b445e77adc7aad576423dd381c226fed9cbe13f4 100644
--- a/steps/taql_copy.cwl
+++ b/steps/taql_copy.cwl
@@ -40,7 +40,7 @@ outputs:
 label: TaQL
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 requirements:
   - class: ShellCommandRequirement
   - class: InitialWorkDirRequirement
diff --git a/steps/transfer_solutions.cwl b/steps/transfer_solutions.cwl
index 91c4c42447192b90e8d043d45c13f8ad7b27e64f..da56c81b9965b04a722b08dc921d137f8c19e763 100644
--- a/steps/transfer_solutions.cwl
+++ b/steps/transfer_solutions.cwl
@@ -92,7 +92,7 @@ stderr: transfer_solutions_err.log
 label: transfer_solutions
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 requirements:
   - class: InlineJavascriptRequirement
   - class: InitialWorkDirRequirement
diff --git a/steps/wsclean.cwl b/steps/wsclean.cwl
index fec80dfd783fdd32e8e2cab93383eb776ee2b819..e32e3d779eebfca6020b45208d659878b3c6c0e0 100644
--- a/steps/wsclean.cwl
+++ b/steps/wsclean.cwl
@@ -355,7 +355,7 @@ outputs:
 label: WSClean
 hints:
   - class: DockerRequirement
-    dockerPull: 'astronrd/linc'
+    dockerPull: astronrd/linc
 requirements:
   - class: InplaceUpdateRequirement
     inplaceUpdate: true