diff --git a/pkgs/development/python-modules/psycopg/ctypes.patch b/pkgs/development/python-modules/psycopg/ctypes.patch
index a76d38f85e80..d2b0842b44b4 100644
--- a/pkgs/development/python-modules/psycopg/ctypes.patch
+++ b/pkgs/development/python-modules/psycopg/ctypes.patch
@@ -1,5 +1,5 @@
 diff --git a/psycopg/psycopg/pq/_pq_ctypes.py b/psycopg/psycopg/pq/_pq_ctypes.py
-index 4f9d00fb..24b90ef6 100644
+index 9ca1d129..02929ab6 100644
 --- a/psycopg/psycopg/pq/_pq_ctypes.py
 +++ b/psycopg/psycopg/pq/_pq_ctypes.py
 @@ -11,14 +11,10 @@ from ctypes import Structure, CFUNCTYPE, POINTER
@@ -30,17 +30,26 @@ index 4f9d00fb..24b90ef6 100644
      fdopen = libc.fdopen
      fdopen.argtypes = (c_int, c_char_p)
 diff --git a/tests/fix_pq.py b/tests/fix_pq.py
-index 6811a26c..c1829c82 100644
+index 917dfc91..505f2d65 100644
 --- a/tests/fix_pq.py
 +++ b/tests/fix_pq.py
-@@ -51,9 +51,7 @@ def libpq():
-         from psycopg.pq.misc import find_libpq_full_path
- 
-         # Not available when testing the binary package
+@@ -47,18 +47,7 @@ def pytest_runtest_setup(item):
+ @pytest.fixture
+ def libpq():
+     """Return a ctypes wrapper to access the libpq."""
+-    try:
+-        from psycopg.pq.misc import find_libpq_full_path
+-
+-        # Not available when testing the binary package
 -        libname = find_libpq_full_path()
 -        assert libname, "libpq libname not found"
--        return ctypes.pydll.LoadLibrary(libname)
-+        return ctypes.pydll.LoadLibrary("@libpq@")
-     except Exception as e:
-         if pq.__impl__ == "binary":
-             pytest.skip(f"can't load libpq for testing: {e}")
+-        return ctypes.cdll.LoadLibrary(libname)
+-    except Exception as e:
+-        if pq.__impl__ == "binary":
+-            pytest.skip(f"can't load libpq for testing: {e}")
+-        else:
+-            raise
++    return ctypes.cdll.LoadLibrary("@libpq@")
+ 
+ 
+ @pytest.fixture
diff --git a/pkgs/development/python-modules/psycopg/default.nix b/pkgs/development/python-modules/psycopg/default.nix
index b73c74ca0ae3..d66f21ca2679 100644
--- a/pkgs/development/python-modules/psycopg/default.nix
+++ b/pkgs/development/python-modules/psycopg/default.nix
@@ -35,13 +35,13 @@
 
 let
   pname = "psycopg";
-  version = "3.1.13";
+  version = "3.1.14";
 
   src = fetchFromGitHub {
     owner = "psycopg";
     repo = pname;
     rev = "refs/tags/${version}";
-    hash = "sha256-N+x8RErlId1uBgXZjBBjtPxqJXGuXZEl78DKVKjhy9w=";
+    hash = "sha256-zocRBnrQoJDWI4qhxDnxxIeiLdaWolvsujqfHBYQc/A=";
   };
 
   patches = [
@@ -52,11 +52,9 @@ let
     })
 
     (fetchpatch {
-      # fix environment variables leaking into test environment
-      # https://github.com/psycopg/psycopg/pull/683
-      # https://github.com/psycopg/psycopg/issues/681
-      url = "https://github.com/psycopg/psycopg/commit/f060855aa6126e811de243c7213d2caff9c88123.patch";
-      hash = "sha256-QsFxK8Qasw9kbNCUUCqbOHaf53kT5NONlr28vGoPda0=";
+      # add fixture to mark flaky ref count tests
+      url = "https://github.com/psycopg/psycopg/commit/70ef364324ba3448ef9ac0e29329c9d802380e4b.patch";
+      hash = "sha256-8PlrBcIumlxFjNXCAfm4NpSIxAnvLR8TopHzneJyzf0=";
     })
   ];
 
@@ -214,7 +212,7 @@ buildPythonPackage rec {
 
   pytestFlagsArray = [
     "-o" "cache_dir=$TMPDIR"
-    "-m" "'not timing'"
+    "-m" "'not refcount and not timing'"
   ];
 
   postCheck = ''