diff --git a/src/block.c b/src/block.c
index b1b780727..b1044a9da 100644
--- a/src/block.c
+++ b/src/block.c
@@ -247,9 +247,9 @@ void print_transaction(dogecoin_tx* x) {
     // parse inputs:
     unsigned int i = 0;
     for (; i < x->vin->len; i++) {
-        printf("block->parent_coinbase->tx_in->i:               %d\n", i);
+        printf("block->parent_coinbase->tx_in->i:               %u\n", i);
         dogecoin_tx_in* tx_in = vector_idx(x->vin, i);
-        printf("block->parent_coinbase->vin->prevout.n:         %d\n", tx_in->prevout.n);
+        printf("block->parent_coinbase->vin->prevout.n:         %" PRIu32 "\n", tx_in->prevout.n);
         char* hex_utxo_txid = utils_uint8_to_hex(tx_in->prevout.hash, sizeof tx_in->prevout.hash);
         printf("block->parent_coinbase->tx_in->prevout.hash:    %s\n", hex_utxo_txid);
         char* script_sig = utils_uint8_to_hex((const uint8_t*)tx_in->script_sig->str, tx_in->script_sig->len);
@@ -261,12 +261,12 @@ void print_transaction(dogecoin_tx* x) {
     // parse outputs:
     i = 0;
     for (; i < x->vout->len; i++) {
-        printf("block->parent_coinbase->tx_out->i:              %d\n", i);
+        printf("block->parent_coinbase->tx_out->i:              %u\n", i);
         dogecoin_tx_out* tx_out = vector_idx(x->vout, i);
         printf("block->parent_coinbase->tx_out->script_pubkey:  %s\n", utils_uint8_to_hex((const uint8_t*)tx_out->script_pubkey->str, tx_out->script_pubkey->len));
         printf("block->parent_coinbase->tx_out->value:          %" PRId64 "\n", tx_out->value);
     }
-    printf("block->parent_coinbase->locktime:               %d\n", x->locktime);
+    printf("block->parent_coinbase->locktime:               %" PRIu32 "\n", x->locktime);
     cstr_free(tx, true);
 }
 
@@ -287,14 +287,14 @@ void print_parent_header(dogecoin_auxpow_block* block) {
         printf("block->parent_coinbase_merkle[%zu]:               "
                 "%s\n", j, hash_to_string((uint8_t*)block->parent_coinbase_merkle[j]));
     }
-    printf("block->parent_merkle_index:                     %d\n", block->parent_merkle_index);
+    printf("block->parent_merkle_index:                     %" PRIu32 "\n", block->parent_merkle_index);
     printf("block->aux_merkle_count:                        %d\n", block->aux_merkle_count);
     j = 0;
     for (; j < block->aux_merkle_count; j++) {
         printf("block->aux_merkle_branch[%zu]:                    "
                 "%s\n", j, hash_to_string((uint8_t*)block->aux_merkle_branch[j]));
     }
-    printf("block->aux_merkle_index:                        %d\n", block->aux_merkle_index);
+    printf("block->aux_merkle_index:                        %" PRIu32 "\n", block->aux_merkle_index);
     printf("block->parent_header->version:                  %i\n", block->parent_header->version);
     printf("block->parent_header->prev_block:               %s\n", hash_to_string(block->parent_header->prev_block));
     printf("block->parent_header->merkle_root:              %s\n", hash_to_string(block->parent_header->merkle_root));
diff --git a/src/cli/spvnode.c b/src/cli/spvnode.c
index 1d17a1659..58650b15f 100644
--- a/src/cli/spvnode.c
+++ b/src/cli/spvnode.c
@@ -275,7 +275,7 @@ dogecoin_bool spv_header_message_processed(struct dogecoin_spv_client_* client,
     UNUSED(node);
     if (newtip) {
         time_t timestamp = client->headers_db->getchaintip(client->headers_db_ctx)->header.timestamp;
-        printf("New headers tip height %d from %s\n", newtip->height, ctime(&timestamp));
+        printf("New headers tip height %" PRIu32 " from %s\n", newtip->height, ctime(&timestamp));
         }
     return true;
     }
diff --git a/src/cli/such.c b/src/cli/such.c
index b48995251..5f2108aca 100644
--- a/src/cli/such.c
+++ b/src/cli/such.c
@@ -27,6 +27,7 @@
 
 */
 
+#include <inttypes.h>
 #include <assert.h>
 #include <ctype.h>
 #ifndef _MSC_VER
@@ -1604,7 +1605,7 @@ int main(int argc, char* argv[])
         enum dogecoin_tx_out_type type = dogecoin_script_classify(script, NULL);
         printf("script: %s\n", scripthex);
         printf("script-type: %s\n", dogecoin_tx_out_type_to_str(type));
-        printf("inputindex: %d\n", inputindex);
+        printf("inputindex: %" PRIu32 "\n", inputindex);
         printf("sighashtype: %d\n", sighashtype);
         printf("hash: %s\n", hex);
 
@@ -2347,7 +2348,7 @@ int main(int argc, char* argv[])
                 return showError("Failed to generate wif address from mnemonic\n");
                 }
 
-            printf("Address %d: %s\n", inputindex, hd_pubkey_address);
+            printf("Address %" PRIu32 ": %s\n", inputindex, hd_pubkey_address);
             }
 
         /* clear and free passphrase */
diff --git a/src/cli/tool.c b/src/cli/tool.c
index a8ad4319e..8579cb052 100644
--- a/src/cli/tool.c
+++ b/src/cli/tool.c
@@ -22,6 +22,7 @@
  OTHER DEALINGS IN THE SOFTWARE.
 */
 
+#include <inttypes.h>
 #include <assert.h>
 #ifdef HAVE_CONFIG_H
 #  include "libdogecoin-config.h"
@@ -184,7 +185,7 @@ dogecoin_bool hd_print_node(const dogecoin_chainparams* chain, const char* nodes
     if (dogecoin_hdnode_has_privkey(&node)) {
         printf("privatekey WIF:      %s\n", privkey_wif);
     }
-    printf("depth:               %d\n", node.depth);
+    printf("depth:               %" PRIu32 "\n", node.depth);
     printf("child index:         %u\n", node.child_num);
     char addr[34 + 1];
     addresses_from_pubkey(&dogecoin_chainparams_main, str, addr);
diff --git a/src/headersdb_file.c b/src/headersdb_file.c
index a851c413c..2014dd223 100644
--- a/src/headersdb_file.c
+++ b/src/headersdb_file.c
@@ -26,6 +26,7 @@
 
 */
 
+#include <inttypes.h>
 #include <sys/stat.h>
 
 #include <dogecoin/headersdb_file.h>
@@ -255,7 +256,7 @@ dogecoin_bool dogecoin_headers_db_load(dogecoin_headers_db* db, const char *file
                     dogecoin_blockindex *pindex = dogecoin_headers_db_connect_hdr(db, &cbuf_all, true, &connected);
                     if (!connected)
                     {
-                        printf("\nConnecting header %s failed (at height: %d) read_write: %d\n", hash_to_string(hash), db->chaintip->height, db->read_write_file);
+                        printf("\nConnecting header %s failed (at height: %" PRIu32 ") read_write: %d\n", hash_to_string(hash), db->chaintip->height, db->read_write_file);
                         dogecoin_free(pindex);
                     }
                     else {
@@ -266,7 +267,7 @@ dogecoin_bool dogecoin_headers_db_load(dogecoin_headers_db* db, const char *file
             }
         }
     }
-    printf("\nConnected %ld headers, now at height: %d\n",  connected_headers_count, db->chaintip->height);
+    printf("\nConnected %ld headers, now at height: %" PRIu32 "\n",  connected_headers_count, db->chaintip->height);
     return (db->headers_tree_file != NULL);
 }
 
@@ -412,7 +413,7 @@ dogecoin_blockindex * dogecoin_headers_db_connect_hdr(dogecoin_headers_db* db, s
                 current_block = prev_block;
             }
 
-            printf("\nChain reorganization: %d blocks disconnected, %d blocks connected\n", blockindex->height - common_ancestor->height, blockindex->height - db->chaintip->height);
+            printf("\nChain reorganization: %" PRIu32 " blocks disconnected, %" PRIu32 " blocks connected\n", blockindex->height - common_ancestor->height, blockindex->height - db->chaintip->height);
 
             // Set the new block as the new chain tip
             db->chaintip = blockindex;
diff --git a/src/spv.c b/src/spv.c
index ffab9d4a9..3944a818c 100644
--- a/src/spv.c
+++ b/src/spv.c
@@ -27,6 +27,7 @@
 */
 
 #ifdef _WIN32
+#include <inttypes.h>
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <conio.h>
@@ -1102,7 +1103,7 @@ void dogecoin_net_spv_post_cmd(dogecoin_node *node, dogecoin_p2p_msg_hdr *hdr, s
             strftime(s, sizeof s, "%F %T", p);
             char *ctime_no_newline;
             ctime_no_newline = strtok(s, "\n");
-            printf("%s|%d|%s|%d\n", hash_to_string(pindex->hash), pindex->height, ctime_no_newline, hdr->data_len);
+            printf("%s|%" PRIu32 "|%s|%" PRIu32 "\n", hash_to_string(pindex->hash), pindex->height, ctime_no_newline, hdr->data_len);
             uint64_t start = time(NULL);
 
             uint32_t amount_of_txs;
diff --git a/src/validation.c b/src/validation.c
index 56f30b860..8154aef13 100644
--- a/src/validation.c
+++ b/src/validation.c
@@ -28,6 +28,7 @@
 
  */
 
+#include <inttypes.h>
 #include <dogecoin/validation.h>
 #include <dogecoin/block.h>
 
@@ -71,7 +72,7 @@ dogecoin_bool check_auxpow(dogecoin_auxpow_block* block, dogecoin_chainparams* p
        where the height is known.  */
     if (!is_legacy(block->header->version) && params->strict_id && get_chainid(block->header->version) != params->auxpow_id) {
         printf("%s:%d:%s : block does not have our chain ID"
-                " (got %d, expected %d, full nVersion %d) : %s\n",
+                " (got %" PRIu32 ", expected %u, full nVersion %" PRIu32 ") : %s\n",
                 __FILE__, __LINE__, __func__, get_chainid(block->header->version),
                 params->auxpow_id, block->header->version, strerror(errno));
         return false;
diff --git a/src/wallet.c b/src/wallet.c
index 6c567d3f2..e5461867f 100644
--- a/src/wallet.c
+++ b/src/wallet.c
@@ -2137,7 +2137,7 @@ uint8_t* dogecoin_get_utxos(char* address) {
             if (strncmp(utxo->address, address, strlen(utxo->address))==0 && !is_spent(utxo)) {
                 int utxo_index_length = integer_length(i);
                 char* utxo_index_hex = dogecoin_char_vla(utxo_index_length+1);
-                sprintf(utxo_index_hex, "%d", i);
+                sprintf(utxo_index_hex, "%u", i);
                 // index
                 concat_str = concat(concat_str, utxo_index_hex);
                 char* txid_hex = utils_uint8_to_hex(utxo->txid, 32);