diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index e4eab4e6..70b6106f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ${{matrix.os}}
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Configure
       run: |
diff --git a/CITATION.cff b/CITATION.cff
index fbc55fb1..1d509d41 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -5,6 +5,6 @@ authors:
     given-names: Erik
     orcid: https://orcid.org/0000-0002-4518-9017
 title: MPItrampoline
-version: v5.2.2
+version: v5.2.3
 doi: 10.5281/zenodo.6174408
 date-released: 2023-04-11
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 60773431..f5d3f76b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.12...3.20)
 project(
-  MPItrampoline VERSION 5.2.2
+  MPItrampoline VERSION 5.2.3
   DESCRIPTION "MPI trampoline"
   HOMEPAGE_URL "https://github.com/eschnett/MPItrampoline"
   LANGUAGES NONE
diff --git a/mpiabi/mpi_functions_fortran.py b/mpiabi/mpi_functions_fortran.py
index 661f37af..21b82890 100755
--- a/mpiabi/mpi_functions_fortran.py
+++ b/mpiabi/mpi_functions_fortran.py
@@ -680,7 +680,7 @@
         ("const MPI_Aint *", "outsize"),
         ("MPI_Aint *", "position"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "datarep_len"),
+        ("size_t", "datarep_len"),
     ]),
 
     ("void", "MPI_Unpack_external", [
@@ -692,7 +692,7 @@
         ("const MPI_Fint *", "outcount"),
         ("const MPI_Datatype *", "datatype"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "datarep_len"),
+        ("size_t", "datarep_len"),
     ]),
 
     ("void", "MPI_Pack_external_size", [
@@ -701,7 +701,7 @@
         ("const MPI_Datatype *", "datatype"),
         ("MPI_Aint *", "size"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "datarep_len"),
+        ("size_t", "datarep_len"),
     ]),
 
     # 5.3 Barrier Synchronization
@@ -1504,7 +1504,7 @@
         ("const MPI_Comm *", "comm"),
         ("const char *", "comm_name"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "comm_name_len"),
+        ("size_t", "comm_name_len"),
     ]),
 
     ("void", "MPI_Comm_get_name", [
@@ -1512,14 +1512,14 @@
         ("char *", "comm_name"),
         ("int *", "resultlen"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "comm_name_len"),
+        ("size_t", "comm_name_len"),
     ]),
 
     ("void", "MPI_Type_set_name", [
         ("const MPI_Datatype *", "type"),
         ("const char *", "type_name"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "type_name_len"),
+        ("size_t", "type_name_len"),
     ]),
 
     ("void", "MPI_Type_get_name", [
@@ -1527,14 +1527,14 @@
         ("char *", "type_name"),
         ("int *", "resultlen"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "type_name_len"),
+        ("size_t", "type_name_len"),
     ]),
 
     ("void", "MPI_Win_set_name", [
         ("const MPI_Win *", "win"),
         ("const char *", "win_name"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "win_name_len"),
+        ("size_t", "win_name_len"),
     ]),
 
     ("void", "MPI_Win_get_name", [
@@ -1542,7 +1542,7 @@
         ("char *", "win_name"),
         ("int *", "resultlen"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "win_name_len"),
+        ("size_t", "win_name_len"),
     ]),
 
     # 7.5 Topology Constructors
@@ -1860,14 +1860,14 @@
         ("char *", "version"),
         ("int *", "resultlen"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "version_len"),
+        ("size_t", "version_len"),
     ]),
 
     ("void", "MPI_Get_processor_name", [
         ("char *", "name"),
         ("int *", "resultlen"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "name_len"),
+        ("size_t", "name_len"),
     ]),
 
     # 8.2 Memory Allocation
@@ -1971,7 +1971,7 @@
         ("char *", "string"),
         ("int *", "resultlen"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "string_len"),
+        ("size_t", "string_len"),
     ]),
 
     # 8.4 Error Codes and Classes
@@ -1999,7 +1999,7 @@
         ("const MPI_Fint *", "errorcode"),
         ("const char *", "string"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "string_len"),
+        ("size_t", "string_len"),
     ]),
 
     ("void", "MPI_Comm_call_errhandler", [
@@ -2066,15 +2066,15 @@
         ("const char *", "key"),
         ("const char *", "value"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "key_len"),
-        ("const size_t *", "value_len"),
+        ("size_t", "key_len"),
+        ("size_t", "value_len"),
     ]),
 
     ("void", "MPI_Info_delete", [
         ("const MPI_Info *", "info"),
         ("const char *", "key"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "key_len"),
+        ("size_t", "key_len"),
     ]),
 
     ("void", "MPI_Info_get", [
@@ -2084,8 +2084,8 @@
         ("char *", "value"),
         ("int *", "flag"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "key_len"),
-        ("const size_t *", "value_len"),
+        ("size_t", "key_len"),
+        ("size_t", "value_len"),
     ]),
 
     ("void", "MPI_Info_get_valuelen", [
@@ -2094,7 +2094,7 @@
         ("int *", "valuelen"),
         ("int *", "flag"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "key_len"),
+        ("size_t", "key_len"),
     ]),
 
     ("void", "MPI_Info_get_nkeys", [
@@ -2108,7 +2108,7 @@
         ("const MPI_Fint *", "n"),
         ("char *", "key"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "key_len"),
+        ("size_t", "key_len"),
     ]),
 
     ("void", "MPI_Info_dup", [
@@ -2134,8 +2134,8 @@
         ("MPI_Comm *", "intercomm"),
         ("int *", "array_off_errcodes"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "command_len"),
-        ("const size_t *", "argv_len"),
+        ("size_t", "command_len"),
+        ("size_t", "argv_len"),
     ]),
 
     ("void", "MPI_Comm_get_parent", [
@@ -2154,8 +2154,8 @@
         ("MPI_Comm *", "intercomm"),
         ("int *", "array_of_errcodes"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "arrray_of_commands_len"),
-        ("const size_t *", "arrray_of_argv_len"),
+        ("size_t", "arrray_of_commands_len"),
+        ("size_t", "arrray_of_argv_len"),
     ]),
 
     # 10.4 Establishing Communication
@@ -2164,13 +2164,13 @@
         ("const MPI_Info *", "info"),
         ("char *", "port_name"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "port_name_len"),
+        ("size_t", "port_name_len"),
     ]),
 
     ("void", "MPI_Close_port", [
         ("const char *", "port_name"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "port_name_len"),
+        ("size_t", "port_name_len"),
     ]),
 
     ("void", "MPI_Comm_accept", [
@@ -2180,7 +2180,7 @@
         ("const MPI_Comm *", "comm"),
         ("MPI_Comm *", "newcomm"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "port_name_len"),
+        ("size_t", "port_name_len"),
     ]),
 
     ("void", "MPI_Comm_connect", [
@@ -2190,7 +2190,7 @@
         ("const MPI_Comm *", "comm"),
         ("MPI_Comm *", "newcomm"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "port_name_len"),
+        ("size_t", "port_name_len"),
     ]),
 
     ("void", "MPI_Publish_name", [
@@ -2198,8 +2198,8 @@
         ("const MPI_Info *", "info"),
         ("const char *", "port_name"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "service_name_len"),
-        ("const size_t *", "port_name_len"),
+        ("size_t", "service_name_len"),
+        ("size_t", "port_name_len"),
     ]),
 
     ("void", "MPI_Unpublish_name", [
@@ -2207,8 +2207,8 @@
         ("const MPI_Info *", "info"),
         ("const char *", "port_name"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "service_name_len"),
-        ("const size_t *", "port_name_len"),
+        ("size_t", "service_name_len"),
+        ("size_t", "port_name_len"),
     ]),
 
     ("void", "MPI_Lookup_name", [
@@ -2216,8 +2216,8 @@
         ("const MPI_Info *", "info"),
         ("char *", "port_name"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "service_name_len"),
-        ("const size_t *", "port_name_len"),
+        ("size_t", "service_name_len"),
+        ("size_t", "port_name_len"),
     ]),
 
     # 10.5 Other Functionality
@@ -2609,7 +2609,7 @@
         ("const MPI_Info *", "info"),
         ("MPI_File *", "fh"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "filename_len"),
+        ("size_t", "filename_len"),
     ]),
 
     ("void", "MPI_File_close", [
@@ -2621,7 +2621,7 @@
         ("const char *", "filename"),
         ("const MPI_Info *", "info"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "filename_len"),
+        ("size_t", "filename_len"),
     ]),
 
     ("void", "MPI_File_set_size", [
@@ -2676,7 +2676,7 @@
         ("const char *", "datarep"),
         ("const MPI_Info *", "info"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "datarep_len"),
+        ("size_t", "datarep_len"),
     ]),
 
     ("void", "MPI_File_get_view", [
@@ -2686,7 +2686,7 @@
         ("MPI_Datatype *", "filetype"),
         ("char *", "datarep"),
         ("MPI_Fint *", "ierror"),
-        ("const size_t *", "datarep_len"),
+        ("size_t", "datarep_len"),
     ]),
 
     # 13.4 Data Access