diff --git a/qa/pull-tester/rpc-tests.py b/qa/pull-tester/rpc-tests.py
index ea9e90c65..67cf1268d 100755
--- a/qa/pull-tester/rpc-tests.py
+++ b/qa/pull-tester/rpc-tests.py
@@ -418,7 +418,7 @@ class RPCCoverage(object):
         if not os.path.isfile(coverage_ref_filename):
             raise RuntimeError("No coverage reference found")
 
-        with open(coverage_ref_filename, 'r') as f:
+        with open(coverage_ref_filename, 'r', encoding='utf8') as f:
             all_cmds.update([i.strip() for i in f.readlines()])
 
         for root, dirs, files in os.walk(self.dir):
@@ -427,7 +427,7 @@ class RPCCoverage(object):
                     coverage_filenames.add(os.path.join(root, filename))
 
         for filename in coverage_filenames:
-            with open(filename, 'r') as f:
+            with open(filename, 'r', encoding='utf8') as f:
                 covered_cmds.update([i.strip() for i in f.readlines()])
 
         return all_cmds - covered_cmds
diff --git a/qa/zcash/updatecheck.py b/qa/zcash/updatecheck.py
index 90e75bff6..cf1206c99 100755
--- a/qa/zcash/updatecheck.py
+++ b/qa/zcash/updatecheck.py
@@ -107,7 +107,7 @@ class GitHubToken:
     def __init__(self):
         token_path = os.path.join(SOURCE_ROOT, ".updatecheck-token")
         try:
-            with open(token_path) as f:
+            with open(token_path, encoding='utf8') as f:
                 token = f.read().strip()
                 self._user = token.split(":")[0]
                 self._password = token.split(":")[1]
diff --git a/src/addrdb.cpp b/src/addrdb.cpp
index f3d6e4bd5..81d011dbd 100644
--- a/src/addrdb.cpp
+++ b/src/addrdb.cpp
@@ -36,7 +36,7 @@ bool CBanDB::Write(const banmap_t& banSet)
     ssBanlist << hash;
 
     // open temp output file, and associate with CAutoFile
-    boost::filesystem::path pathTmp = GetDataDir() / tmpfn;
+    fs::path pathTmp = GetDataDir() / tmpfn;
     FILE *file = fopen(pathTmp.string().c_str(), "wb");
     CAutoFile fileout(file, SER_DISK, CLIENT_VERSION);
     if (fileout.IsNull())
@@ -68,7 +68,7 @@ bool CBanDB::Read(banmap_t& banSet)
         return error("%s: Failed to open file %s", __func__, pathBanlist.string());
 
     // use file size to size memory buffer
-    uint64_t fileSize = boost::filesystem::file_size(pathBanlist);
+    uint64_t fileSize = fs::file_size(pathBanlist);
     uint64_t dataSize = 0;
     // Don't try to resize to a negative number if file is small
     if (fileSize >= sizeof(uint256))
diff --git a/src/addrdb.h b/src/addrdb.h
index f386d32f6..46eed7db1 100644
--- a/src/addrdb.h
+++ b/src/addrdb.h
@@ -12,7 +12,6 @@
 
 #include <string>
 #include <map>
-#include <boost/filesystem/path.hpp>
 
 class CSubNet;
 class CAddrMan;
@@ -93,7 +92,7 @@ public:
 class CBanDB
 {
 private:
-    boost::filesystem::path pathBanlist;
+    fs::path pathBanlist;
 public:
     CBanDB();
     bool Write(const banmap_t& banSet);
diff --git a/src/miner.h b/src/miner.h
index 032fce91b..4f2e87659 100644
--- a/src/miner.h
+++ b/src/miner.h
@@ -8,7 +8,6 @@
 
 #include "primitives/block.h"
 
-#include <boost/shared_ptr.hpp>
 #include <stdint.h>
 #include <variant>
 
diff --git a/src/net.cpp b/src/net.cpp
index c35596b91..73c4a79d9 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -21,7 +21,6 @@
 #include "primitives/transaction.h"
 #include "scheduler.h"
 #include "ui_interface.h"
-#include "crypto/common.h"
 
 #ifdef WIN32
 #include <string.h>
diff --git a/src/script/zcash_script.h b/src/script/zcash_script.h
index 804ffafc0..a34963cba 100644
--- a/src/script/zcash_script.h
+++ b/src/script/zcash_script.h
@@ -3,8 +3,8 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
 
-#ifndef BITCOIN_SCRIPT_ZCASHCONSENSUS_H
-#define BITCOIN_SCRIPT_ZCASHCONSENSUS_H
+#ifndef ZCASH_SCRIPT_ZCASH_SCRIPT_H
+#define ZCASH_SCRIPT_ZCASH_SCRIPT_H
 
 #include <stdint.h>
 
@@ -107,4 +107,4 @@ EXPORT_SYMBOL unsigned int zcash_script_version();
 
 #undef EXPORT_SYMBOL
 
-#endif // BITCOIN_SCRIPT_ZCASHCONSENSUS_H
+#endif // ZCASH_SCRIPT_ZCASH_SCRIPT_H
diff --git a/src/test/bctest.py b/src/test/bctest.py
index 4d7382e61..9859186e6 100644
--- a/src/test/bctest.py
+++ b/src/test/bctest.py
@@ -39,7 +39,7 @@ def bctest(testDir, testObj, exeext):
     inputData = None
     if "input" in testObj:
         filename = testDir + "/" + testObj['input']
-        inputData = open(filename).read()
+        inputData = open(filename, encoding='utf8').read()
         stdinCfg = subprocess.PIPE
 
     # Read the expected output data (if there is any)
@@ -49,7 +49,7 @@ def bctest(testDir, testObj, exeext):
         outputFn = testObj['output_cmp']
         outputType = os.path.splitext(outputFn)[1][1:] # output type from file extension (determines how to compare)
         try:
-            outputData = open(testDir + "/" + outputFn).read()
+            outputData = open(testDir + "/" + outputFn, encoding='utf8').read()
         except:
             logging.error("Output file " + outputFn + " can not be opened")
             raise
@@ -105,7 +105,7 @@ def bctest(testDir, testObj, exeext):
 def bctester(testDir, input_basename, buildenv):
     """ Loads and parses the input file, runs all tests and reports results"""
     input_filename = testDir + "/" + input_basename
-    raw_data = open(input_filename).read()
+    raw_data = open(input_filename, encoding='utf8').read()
     input_data = json.loads(raw_data)
 
     failed_testcases = []
diff --git a/zcutil/clean.sh b/zcutil/clean.sh
index 49f7a12a3..01738dcb0 100755
--- a/zcutil/clean.sh
+++ b/zcutil/clean.sh
@@ -98,7 +98,7 @@ rm -f src/secp256k1/src/stamp-h1
 rm -f src/secp256k1/.so_locations
 clean_exe src/secp256k1/tests
 clean_exe src/secp256k1/exhaustive_tests
-rm -f src/secp256k1/tests.log src/secp256k1/exhaustive-tests.log src/secp256k1/test-suite.log
+rm -f src/secp256k1/tests.log src/secp256k1/exhaustive_tests.log src/secp256k1/test-suite.log
 
 clean_dep src/univalue univalue-config.h.in
 rm -f src/univalue/univalue-config.h